There is definitely a need for many more rescues for rabbits. Running a rescue can be complicated and costly. If you currently have your own rabbits, and you plan to house any rescues in your home, be aware that this can be upsetting to your rabbits.
Another big thing to be aware of is if your rescue becomes known, you may be inundated with requests to take rabbits. I volunteer at a rabbit sanctuary. We give our rabbits a home for life, so we can only take a few new ones each year. One of my duties is to be in charge of the email account. I get email after email of people asking us to take their rabbit or rabbits. It may be their own rabbit that they no longer want, or it may be a rabbit that they found abandoned, or it may be a shelter that doesn’t take rabbits, and we sometimes get requests from Animal Control or from other rescues when a large number of rabbits have been seized from a hoarder or breeding facility. It is very distressing and depressing to hear of all these animals in need, and to not be able to take but a few of them.
I’m not saying this to discourage you, because as I said, we need a lot more rescues. There are many more rabbits in need of a home than there are homes or rescues for them to go to. You just need to be prepared for anything that might come up. You would also need to carefully screen any people who want to adopt, getting vet references, making sure they know about rabbit care and their ways, etc. It’s also a good policy to require people to bring back the rabbit if it doesn’t work out, so that the rabbit doesn’t end up in a bad situation. And, if the rabbits didn’t get adopted, you would need to be prepared to keep them. I know that there are some rabbits who have been at a rescue for years, with no one wanting to adopt them.
If you do go forward with your plans, I wish you good luck. It’s wonderful when people can rescue animals and find good homes for them.