Subeta - virtual pet site (mlp fans on here)
https://subeta.net/?refer=Nightmare_Lady

Marapets - virtual pet site (Has a Gonk, which looks like a pony, a Yuni, which looks like a unicorn pony, and sybil, which looks like a zebra
https://www.marapets.com/refer.php?id=GospelGoth

Goatlings - very mlp virtual goat pet site ( Has a lot of mlp cute themes)
http://www.goatlings.com/register/?username=GospelGoth

Aywas (virtual pet site)
https://www.aywas.com/register/referral/82022/

Chicken smoothie - Virtual pet site ( has fan art for chicken smoothie)
https://www.chickensmoothie.com/Forum/viewtopic.php?f=52&t=3084935&p=101309565#p101309565

Icepets - cute virtual pet site
https://www.icepets.com/index.php?r=GothicLady

Neopets - virtual pet site (has uni and peophin pets)
www.neopets.com/refer.phtml?username=gothicuni

Rescreatu
https://www.rescreatu.com/forum/cat/games/officialcontests/refer-a-friend-contest-/~page/4/