Tab 4 in my stable has lots of non-vis 2nd and 3rd generation sylestis for 500 gold each. I can't keep the ones I'm unsure about anymore, as It's getting a bit crowded, and I can't have all of them tested.
here's a WARNING though, two or three of them are captured, and those may carry nothing at all. Most of those that are bred have showing parents, so they'd carry whatever their parents show at the very least.

Tab 5 has lots of pretty 1-vis pets, and of them are carriers as well. Most of them are up for 2000 gold each, but prices are open for discussion.