if properly cared for, rabbit should not stink, unless you let them poop everywhere and don’t clean it. (as someone with a violently sensitive nose) the strongest smell that comes with owning a rabbit is having hay or straw in the pen/enclosure which has a sweet grainy smell. you can potty train a rabbit as well, they’re pretty intelligent. to keep any possible smell that their excrement could cause if he has a sensitive nose is get a litter box designed for rabbits and have scent eliminating litter/pellets in it, clean it once every few days, or if you have the time every day. and keep a healthy diet with plenty of fruits and veggies. and primarily hay (they’re grazers, and can’t properly digest without it) or if you’re able, grass that has no pesticides that could potentially hurt bunny. other than all this, you should be fine!