Your best bet is to look into the TransID, Para, RQ & Pro-Ship Representation in Media channels. I’ll mention all of the ones that I know that are cannon. Emberlynn from Helluva Boss is a teratophile. Vadelen Indothan is a trans-Khajiit and Ferordomas is a necrophile, both of them are from ESO. Koltin is a transspecies from LOZ TOTK. Sasan and Finley are in a youth-adult relationship and they’re from LOZ BOTW. Falanu Hlaalu is a necrophile from The Elder Scrolls IV: Oblivion(which is a timely topic given the remaster that just released). Comet and Ruby are a consang couple from two comics by Furward Thinker. Casey and Nieve are a consang couple from another comic by Furward Thinker. Heads up, the comics by Furward Thinker are NSFW comics.
I believe there are a few of them but I’ll have to find them. If I can’t find them, then I’ll try to make one or two templates. I love templates a lot and I’m happy that there are others who enjoy them too.