If you go to Google and click images up at the top, you will see the camera icon in the search bar. Click it, then paste the URL to your gif and Google will find what Tumblr it's on. Read the notes on the gif and you'll probably find an ID for each of those.
I like Annie Cruz, Lucy Lee, , Kammy, Hitomi Tanaka, Jessica Bangkok, London Keyes, Mimi Miyagi, Nautica Thorne, Tia Ling, ... basically love any asian porn star who is either a dirty talker, thick, does anal or all the above. Also love black porn stars with big asses like Cherokee (D'Ass) and Mz. Booty.
Old school stars: Christy Canyon, Ebony Ayes, Kandi Kane, Patty Plenty, Kitten Natividad, Mai Lin, Minka