A couple more can you feed the rabbit guinea pig pellets? how do you keep the bunny from chewing things like base boards?. Is it easier to keep the rabbit/protect from the piggies? I don't know how to choose between a cat or a bunny? much down the line. the rabbit would be free range.
Oxbow Essentials makes food specifically for piggies and also specifically for either juvenile or adult rabbits. Best to feed the appropriate food.
As far as chewing goes, it truly depends on the individual rabbit. I've had many that completely ignored the baseboards. One of my current bunnies loves the baseboards. I've tried vinegar, I've tried ivory soap... nothing would stop him. I ended up putting a 1X3 in front of the baseboards. He can chew on that all he wants.
Which brings me to a consideration. Bunny proofing varies per rabbit and usually requires some 'adjustment' to your decor that might not be the prettiest. Binkybunny site has some great bunny proofing tips. (But for forums, I find rabbitsonline.net to be far more active.) So just be forewarned about 'decor adjustments' if you happen to be very particular about things.
As for single vs pairs, it's really up to you. If you are housing your bunny inside (and free range) then a single bunny can be quite happy. They are not like piggies (imo) in needing to have a companion. [Outdoor bunnies, on the other hand, DO need a companion or they'd be awfully lonely banished outside] I've kept both singles and pairs. That said, I will somewhat contradict myself and say that one particular bunny I had, after she lost her bondmate, did become destructive. She was one rabbit who seemed to need a companion.
If you decide to get a rabbit, I'd highly suggest getting an already fixed rabbit from a rabbit rescue. Fixed rabbits have a more evident personality so you can choose the one to which you are drawn. I wouldn't get hung up on breed, but look more for the right personality. Fixed rabbits are also at the more trainable age and do well with litter training (if not already trained). Another plus is that you get to avoid the stress and cost of spaying/neutering. And, if you decide to bond him/her later, you've already established a repoire with the rescue and they can help you find a suitable companion.
And just in case you didn't catch it on an earlier post, I'd invite you to browse around my indoor bunny site here:
https://rabbitsindoors.weebly.com/
Here are my curious bunnies wondering about these new piggies: