3yr old male cat rehoming

3yr old Male cat Fixed Up to date on shots Not good with children Litter box trained Haven’t had with other cats but doesn’t do well with dogs Just started showing signs of aggression with some biting and with just being diagnosed with cancer and being on chemo I have to be careful.
He is great when he is around his owner and people he knows/sees regularly but is weary of new people! Free to good home! Located in Brainerd!