Hi Amanda, if you live in the US, you could try Craigslist, or if overseas, The Trading Post, for adopting an older rabbit. Some people have success keeping their rabbits next to each other, others, not so much. It really is a bit of a gamble, because rabbits have a way of buggering up your plans when you think you’ve got it covered. The main thing is knowing what age the hormones peak for youngin’s, so you don’t end up with injuries or a hindered bond. Everything I’ve read says that bonds can change during maturity, so people sometimes end up rebonding after a rabbit is desexed. If you decide to keep them next to each other, make sure you leave space in between the cages so they cant bite each other. My first (adult, adopted) rabbit displayed territorial aggression with the rabbits I temporarily housed next to him, but my cousin’s rabbits had the smoothest bonding dynamic ever (however, that could’ve been because they started bonding in a new house (complete neutral territory)).