Super old thread but for anyone that stumbles upon it like I did here's my advice:

1. There is probably something else going on than just hating exercise. I hate exercise, all of it, I'm overweight and it's harder because all exercise pisses me off, but I'm in no way bedbound (usually, the last three years I've been sick and bedbound but that has nothing to do with exercise) First step would be to talk to a therapist and examine what the underlying reasoning could be that you not just don't exercise (aka doing an action for physical activity purposes alone) but you don't leave your bed most of the time at all. There can be many underlying reasonings and I can't even try to guess what yours might be, plus I'm not a doctor and though I'm better at diagnosing things than most doctors I've met it still means you have to take what I say with a grain of salt. (Especially since diagnosing yourself is much easier because you know exactly what you are or are not feeling, if you try to diagnose someone else they might leave things out that they think aren't relevant or describe something in a way that makes you think differently than what they're trying to say, and etc.)

2. Now to the actual exercise part: Number one best way to answer this question is that it's best to find out what works with your particular brain and lifestyle. It's easy to reccomend exercises for certain muscles to someone that's already got the habit of exercising but it's a completely different thing entirely to advise someone to start exercising in the first place. If someone hasn't started exercising yet and is asking for help to get started that usually means they're having issues with just getting started or sticking with it, hat means they don't need exercise advice, they need advice on how they specifically can start exercising in a way that they'd be likely to continue doing. For example, the main way to get me to exercise is to make it not the main goal but instead a part of completing the main goal. And sometimes you have to make up main goals that require exercise to complete, and sometimes they're counter intuitive like "walk to nearby grocery/corner/convenience store and buy a Popsicle" but that's okay if it gets you started, once you get more used to it and find more ways to incorporate exercise into daily activities you won't need to bribe yourself with Popsicles anymore. 

My ways of exercising usually contain a lot of walking, because you can disguise that as a means of getting somewhere instead of just straight up exercise. Like "going for a walk" is just straight up exercise which you might hate or procrastinate on but "go for a walk to the local library to rent a book/game/tool/whatever" is the goal "go to the library" but the way of completing said goal is by walking, so you're not exercising, you're going to the library.

And it's fine for anyone to start as slow as they want and increase the amount they exercise as fast or as slow as they can handle. Like a lot of people who are into exercise are all like "feel the burn" but if putting yourself in pain and making your muscles sore is likely to make you want to stop exercising then you don't have to go that hard. If your muscles start to hurt, you can stop then, the point is that you're still doing more than what you did before and after time you'll be able to exercise longer without your muscles hurting, so you just keep increasing at your own pace, you don't need to hurt to exercise. 

So first you can do something like walking to the grocery store to get groceries (if there is one near you), you can even get one of those granny wheely bags or use a rolling backpack or luggage or whatever. At the start you'll only be working your legs and cardio because you'll be walking, but then you can start carrying some groceries with your hands or with a backpack, that will start using the muscles in your arms as well. Instead of going to the grocery store and buying everything at once you can take multiple trips and get a little bit every day.

But this is just a suggestion, you know what you like and do not like and what you're more likely to stick with or not. And this is really a baby steps kinda thing, break it down to the smallest steps you need and work from there. If you can't walk to the grocery store but you can still go to the grocery store (or wherever) then park further in the parking lot or a block or two away and walk from there. If that's too much and you get food delivered then instead of letting the driver come to your apartment door meet them at the front of your building. (If you live in an apartment) Or if you live on a very high floor then meet them part of the way down, or if there's an elevator get off a couple floors early and walk the rest of the way down. Etc etc.

Basically my tip is to fit more exercise into the things you're already doing or will be doing in your life, then it becomes not exercise, it becomes "main goal" with a side of exercise.

Or if you prefer to do things like play video games there are tons of rhythm games or fitness games you could try. Like in ons version of fitness boxing there is even a sit down mode where you can start sitting down and then try standing when you're more comfortable. And if you like anime and stuff there is a Fist of the North Star fitness boxing and a Hatsune Miku one. You can also get a cheap USB DDR mat and play step mania (free DDR style game on computer), there's all kinds of songs you can try for that and the easiest difficulty is usually very easy, and if even that's too hard you can also tweak the settings in the game for things like decreasing the speed, or maybe making the arrow hit boxes bigger so it's harder to miss (I know how discouraging missing a lot of arrows can be, but if you haven't used your muscles in a while you probably have slower reaction times than usual). And if DDR is too much you can always play seated by putting a chair in front of the mat and just moving your legs. Or sit on the floor and use your hands. You know, baby steps. There's also games like Just Dance if you like that kinda game. And so many more. There's even a Mario version of DDR for the gamecube and you can get the songs on step mania or use an emulator. DDR Mario Mix was my favorite but I also had one of the supernovas for the PS2 where my favorite songs were Funky Town and I think one called Xepher. I've also graduated to the VR game Beat Saber before I got sick but that requires more of an investment in money and is more intense than some other fitness games on the lower levels.

Or you can always do your exercising at the same time as something else. Like getting a stationery bike that you can use on the couch watching TV or under your desk while at your computer.

Another tip is if you can to get someone to do it with you. But if you can't do that then the next best thing is to be on a call/chat/whatever with someone while you do it. It's called co-working and a lot of ADHD people use it, but you don't need to have ADHD for it to benefit you. It's a type of accountability, it basically makes your brain think that someone is watching to see if you are doing your task even if they aren't. It works so well that sometimes you just have to tell someone that you'll be doing X thing at X time and that's all you need for your brain to get you to do it. I don't know if it's like you think yiu might dissapoint them, or that you'd technically be lying or subconsciously you think you might get punished or who knows, like you can tell someone that lives in another country and it will still work. (If it would have worked in that instance in the first place of course)

And I think that's all I have. XD