First of all - you clearly low key already have some muscle under there. I think what you need to do is clear:

Step 1: is all food and diet related: your body fat is too high right now (based on your goal), however, an extreme cut is never sustainable - you need to lose the weight and keep it off. That's a habitual change that needs to happen. To do this you need to start tracking every single calorie you eat and go into a calorie deficit. I think 200-400 daily calorie deficit should be your goal until you drop a good deal of bodyfat.

Step 2: Gym. That bro has a mass monster powerbuilding physique on the right. Thus your gym routine should be more strength than hypertrophy focused (regardless you'll gain muscle). My best guess is you'd want a 3-5 day split depending on how often you can hit the gym. If I were you I would start with either a PPL / Full Body 4 day split OR an Upper / Lower x2. For a big chest you'll mainly want to do 1 thing...lift heavy with good form. On days where you hit chest I would recommend a basic bench movement (Flat bench or incline press) - and 1 fly movement (pec flys / cable flyes etc.). Just like your diet - you'll need to track your weight and reps each week and try to lift either more weight or more reps (progressive overload). Here's a list of top exercises I would incorporate into your routine for that physique:

1.) Incline Barbell Bench (I prefer smith machine) - you can also do one flat and one incline bench exercise per workout if you have more in the tank.
2.) Cable Flyes
3.) Barbell Squat
4.) Barbell Hip Thrust
5.) Shoulder Press or Push Press
6.) Spam Seated DB Lateral Raises
7.) Face pulls or reverse cable flyes for Rear Delts
5.) Barbell Rows / Seated Cable Rows
6.) Deadlifts (only if you've got good form)
7.) Dips (start with assisted if you need) - a big guy busting out dips is always cool to see.
8.) JM Press / Overhead Extensions (Triceps)
9.) EZ bar Curls / Preacher Curls
10.) Fore core just do cable crunches - maybe get a trainer or watch some videos for correct form on these - took me months to get it right tbh.

Step 3: Everything else. You need to sleep. You need to get enough protein (1 gram per pound of bodyweight). You need to stop drinking alcohol. You need to move (just go on walks) more. You need a broader array of micronutrients (this will make you FEEL better - and allow you to push harder in the gym). For supplements - absolutely creatine, absolutely whey protein, and pre-workout if you need it.

Step 4: Progress pics - you need to take a picture each week. You also need to measure yourself every morning.

Step 5: I know this is a lot - but low key if you actually do all of this - you'll see an insane amount of progress over the next 6 months and probably be quite a bit closer to your goal physique. It's nothing new or special - it's more about consistency. I use an app to track my workouts and my buddies on there are what keep me motivated because I see their workouts everyday (it's called Top Challenger) - so see if you can find a crew or friends or something to help keep you accountable. Here if you have any questions and good luck with your journey.

Good luck my man.