This really is tough. I remember you saying that when you inquired about adopting one of your bunnies, the previous owner really spent alot of time with you on the phone. I’m sure she had the same concerns then that you have now. I know there have been a few members, in similar situations, to you that had to find homes for their bunnies. I do remember them developing an adoption contract and keeping the price up high enough so as to discourage people who want bunnies for snake food and other undesirable reasons.
I can tell you what I did when I was Fostering Jack, (who I ended up adopting). I went to my local vets offices, and local small mom and pop pet supply stores and asked if I could put up posters of Jack. And around here, our local Trader Joes Grocery, has bulletin boards and they allowed me to put up a Jack adoption poster. I just chose places that I knew would more likely attract people who were animal friendly and would not want to harm him. However, they still had to fill out the adoption form from “SaveABunny Rescue” which was who I was Fostering for at the time.
They had to answer a list of questions and fill out the form and the adoption fee was $85 (however, that paid for a vet exam and his neuter surgery so they would have gotten a deal!)
Hopefully other will have additional advice to help you find loving safe homes for the surprise litter.