There are actually male performers tagged in SLR and some other studios, but they are hidden for some reason
For example:
https://www.sexlikereal.com/pornstars/jay-romero
https://www.sexlikereal.com/pornstars/david-lee
Idk why they don't just include it in the visible tags, maybe because it is not consistent
David Lee has a lot of vids with RealJamVR and probably other studios, which are not tagged unfortunately
This doesn't help you if you don't know the name of the performer, which is the main reason why people want the tag so yeah...