I had a girl first and once she was spayed we gotan unneutered boy. They got along fine although he was always sprayingurine round her. However once he got neutered this stopped and now theyare totally bondedwith each other....I am so happy I got myrabbit a chum as Ithink she was lonely and it is one ofthebest things you cando for your bunny is to getthem a little friend, so long as they are thoughtfully brought togetherand supervised at first.
I think some shelters let you take a neutered rabbit for a little trialto see if it gets on withyour rabbitwith the optionof taking it back if they dont get on.
I thinkneutered girl and neutered boy is the best combo. Good luck.