They don't have systems but kind of reincarnated and experience from their past self; definitely focus in the entertainment industry. Try out these two, "Be the Actor" ( my favorite so far ), "My Second life as an Idol", "Movies are Real" ( a nice concept ) and "I Became A Top Actor Just By Reading Books".
I said two but I end up adding more lol
thankyou so much buddy ( ≧Д≦) (be the actor) was so great, i glad i read them, ontheway reading your other recommendation. I woof you to the moon and never coming back ಥ_ಥ
can yall recommend me, if someone made reading list with webtoon/manga/manhwa has similar vibes with this, debut or die, etc. Damn this kind of genre is sooo good im hooked