Here are a few resources that you can use for your games

ART

 - CloudNovel (just be careful because lately it's been filled with AI-generated content)

- Itch.io Assets

- LemmasoftAssets 

- Pixabay (it also has AI-generated content)

SOUND EFFECTS

- Zapsplat

- MotionArray

- SoundCloud SFX

MUSIC

- Itch.io Music Assets

- SoundCloud Music

- Artlist.io Music