The VG Resource

I might try ripping sprites, but I don't know how.

Which game from which system? And which emulator do you want to use?

This thread has some great tutorials on ripping sprites from a lot of consoles:
https://www.vg-resource.com/thread-28638.html
This is a unreal engine ripping tutorial:
https://www.vg-resource.com/thread-32045.html
This is a unity engine ripping tutorial:
https://www.vg-resource.com/thread-31141.html
This is a bms script tutorial(you use these scripts to extract assets from games):
https://www.vg-resource.com/thread-28180.html
This is also worth checking:
https://wiki.vg-resource.com/Ripping_Sprites
I hope this can be useful.