@PuffinMuffin Soletech seems to be rotating which models they're trying "vegan" materials with since people have been asking for vegan versions of XYZ from them that didn't have them before. However, they seem to be pretty regularly making many vegan versions of the models below. I see at least one from them in almost each seasonal drop.
Etnies:
Jameson, Fuerte, Joslin, Marana, Calli Vulc, Windrow Vulc
Es:
Accel Slim, Accel Slim Plus Everstitch, Accel OG
Emerica:
Dickson, Wino G6 Slip, Romero Laced, and the new Quentin