@RabbitSadFace how is it going?
Unfortunately this is so common and once boys hit maturity they can be a pain to bond with each other! Same with having two girls who want to be in charge.
Baring in mind it can take 8 week for rabbits hormones to completely die down after neutering, then you can let them live side by side in a pen for a while, then as they seem more comfortable you can swap their litter trays around so they have each others scent without the actual bun being there.
Then you need to introduce them in a small neutral space, most people use the bathroom floor, it is normal for them to hump, nip and thump, if they are full on fighting / drawing blood, you need to remove them and try again another time. If they are circling each other, you need to shrink the space so they can't. Always have a towel on hand in case they start fighting, that way you can break it up without getting injured.
If they lay down that is great, if you offer some hay and they eat, that is great too, shows they are comfortable with each other, then you can slowly open up the space a little, gradually open up the space every time they are being good, until they are able to be in an open room. Once I put my buns together, I try to continue bonding 24/7, without removing them if all goes well, as removing them can interrupt the bonding process. Obviously you know your buns and if it is way too much for one, then maybe they need to live next to each other a little longer.
If you do manage to get them okay with each other, it might be worth sleeping in the same room as them the first night, as they are more active at night, you'll need to completely disinfect all their stuff though, so it is all neutral smells and isn't one or the other's territory. F10 cleaning solution is perfect and veterinary grade cleaner.
Some buns take a second to bond, others takes weeks or even months, but I've personally never met a bun that I haven't managed to bond with a potential parter. I have and had buns of my own, I also used to take in unwanted buns, get them neutered, vaccined, bonded and found them their forever homes, which was so rewarding.
Once bonded they need to go everywhere together, even to the vets.
Bear in mind they are more active dawn and dusk and need to burn off their energy generally when we are asleep, so if you have a hutch, you'll need a permanent pen attached or you can get a dog pen, which is pretty high and add a hide and litter tray in.
If you go down the rehoming route, I definitely recommend a rescue they will make sure they are up to date with vaccines and pair them with a perfect partner, ready for their new home. Most rescues will do the speed dating that has already been mentioned, so you can hopefully find the remaining bun a wife.
Best of Luck whatever you decide or have decided!