Is there a thread in existence that is a sort of master list of all themed pets and who sells them? I was thinking of making one but wanted to check and see if one exists already. Thanks in advance!

I'm pretty sure there isn't.

I've seen a thread before with the users who were the first to achieve 6vis for each theme but this was a long time ago and I don't know where it would be or if anyone is still updating it.

People also make threads during the fest with all the new themes and who designed them, but again, I don't know where you would be able to find them.

If you're trying to make a list of all the people who sell themed, even if you only include 6vis projects and not tagged, it's a nearly impossible task since so many people have breeding projects

Sorry that I can't be more helpful.

I think the closest is the 6v themed masterlist here, but that list is purely for the first 6v of any given theme, regardless of if the person goes on to breed/sell more, and regardless of any other 6v's of that theme bred

the best way to confirm if a themmed is being worked on is to look in the advenced shearch. Look for odd names and high amount of traits on pure breed, they can give a good indication on that, the lineage can also help. ^-^