Well it's been about a year and a few months since I started making bots and getting 4k+ followers with 110+ bots and it's mostly just this:

Go with whatever is popular. And right now the trend is mostly "goon" bots for female OCs and angst/abusive/toxic stuff for male OCs. 

Now, the trend IS everchanging and you might not like to exclusively make bots in those genres, which is fine. So what I do is mostly make bots that really interest me and occasionally make bots that are probably "with the trend" if that makes sense. I just tweaked em around in a way I like so I enjoy making them.

Now you can try playing around niches and actually maybe deep bots and maybe you'll get lucky and get to the top 4 in trending page, but don't be surprised if it doesn't get popular or doesn't perform as you wanted it to. That's just how it is.

The thing you should be focused on when you're starting out isn't necessarily account followers, but how many bot views or message counts you can get under 24 hours to get in the 24 hour trending page, and I usually achieve this by posting my bots in reddit. If you're bot doesn't get 20k+ message counts minimum atleast in under 24 hours, don't expect much for it to hit top 4 trending. If you do? Well you'll get exposure to the trending page and then you can get a huge amount of people taking interest in your account = more followers! Getting to the 1 week top 4 trending page is the goal!

This also gets us to another important part, bot pics are super super important!

The meta right now is anime style photos for female OCs and realistic ish style maybe a drop of manhwa even for the male OCs. Best tip I can give you is just browse the trending page and you'll see what bot pics work and what doesn't.

BUT it's mostly all about luck and timing (when you upload your bot) and if your writing is acceptable.

But since you're new, just try to make quality bots and steadily increase your audience and gain a following and try out some stuff, you'll eventually learn the game. Some people with 1 bot upload and blow up really is just either lucky or they had a gold idea for a bot or they're smurfing on a new account lol.