It’s all relative. As stated what is the norm for your school. At my son’s school unless you come from one of the two 7/8 grade accelerated schools you can’t start APs till Junior year but his all honors school at that time was the top school in the state which probably had more pull.
Do to scheduling issues his junior year he could only take 2… Yes, he freaked out but his counselor told him it won’t effect anything with the colleges. He over compensated senior year and took 6 with Calc 3. He found this to be his most interesting schedule and thought it was easier then his all honor classes.
So shoot for 4-6 and find out what the norms for your school are. Also schools don’t look favorable on like AP stats if there is something with more rigor that makes sense
Lastly, only take them if you can do well in them. Taking alot of APs and not doing well doesn’t give you any advantage.