I just checked your profile and he’s neutered, which usually helps curb his need to be all over you.
If you are in a position to get a mate for him, it can definitely be another male. The humping between bunnies is primarily a gesture of dominance, not sex, unless they are both not fixed and trying to procreate. Otherwise, it’s just establishing who is in charge in the relationship. That’s why you can see a female humping a male and it’s ok between them, but looks weird to us.
That said, bunnies bond with another bunny they think they might like. Sometimes two bunnies will just hate each other on sight, and rarely love each other on sight. Either combination of genders is possible in both situations.
Usually a bunny will show some preference for another bunny, discovered through “dating” where you let your bun meet several possible mates at once, like at a shelter. If they do not start to fight, or if one lets the other groom them, you are off to a potentially good bond and your bunny has said “I think I can tolerate this one” so you can pick that bunny. In other words, female or male, your bunny has a say in the matter. That’s why it’s easier to bond that way than to bring home a stranger you think is cute or sweet and stick your bunny with the new one, with no choice. Your bunny is in HIS home and not initially interested in sharing, even if he picks a mate.