Question

What Pokemon spawn in Chargestone Cavern?

Comments

Try Bulbapedia, it has lots of information about Pokemon spawn locations. Here’s the link for Chargestone Cavern:
https://m.bulbapedia.bulbagarden.net/wiki/Chargestone_Cavern

Answer 1

According to Bulbapedia, these Pokemon spawn in Chargestone Cavern in SV:

Magnemite
Magneton
Elekid
Electabuzz
Plusle
Minun
Beldum
Metang
Rotom
Joltik
Galvantula
Tynamo
Eelektrik
Eelektross
Drilbur
Excadrill
Minior

Note this list may not be fully encompassing as most SV Pokemon lists tend not to be, but this will account for the vast majority of any Pokemon you encounter in Chargestone Cavern.

Hope this helps!