Leagues in Los Angeles?

Ive been seeing reels/videos of some pretty legit looking mens leagues, I've done my research and cant seem to find much info regarding one near me, or where to sign up/try out.
Played since I was a kid and up to Sophomore year of high school lol

I want to pitch... but I only pitched 1 year out of those 9+ years I played... Can I pitch anyway lmao