Re: XBOX ROMs may be coming.
Note there isn't any games to download there but there is plans for em.
"Vimm's Lair Discord: https://discord.gg/XReX2ZGNcV"
Ok, so after a bit of digging, I found that the games start at "187: Ride or Die" with https://vimm.net/vault/15131 and end at "WWE WrestleMania 21" with https://vimm.net/vault/16169
There may be some exceptions there but any number between those should work.
To reiterate, any number between "15131" and "16169" are Xbox roms.
Thank you jack54guy who found the first Xbox ROM.