Is there any good internal cheat？

I mainly use legit cheats and exclude memesense, midnight, and iniuria.

Those you named are the go to i would avoid midnight enitirely stick to iniuria and memesense i mainly use gamesense and iniuria time to time.

is midnight safe to use on main account, Im just looking to play legit

Just use iniuria

Look at smart-aim.com