Welcome to Pet Talk lizzielou742. Tito sure is adorable and I'm sure that in time he'll welcome another sister or brother. I have 4 male cats and they all get along except for Storm and Cirrus. Storm is the alpha cat and is very jealous of Cirrus because he loves to be petted all the time. They don't really fight though. Storm will chase Cirrus until Cirrus hisses or growls at him. Luckily Cirrus is very afraid of Storm.

I think that since you already have a male cat that a female or a male would work. Now if you had a female, I'd suggest a male because usually females are much more territorial and may not get along well with other females. Males are usually much better in multi-cat households. Of course both of these statements aren't always true.

I'd also wait until you move and are completely settled in before adopting another cat. This way there will much less stress on you and the new cat. It may also work out well for Tito too since he'll be in new surroundings as well. This may make for an easier transition for both cats since their surroundings will be new.

Good luck and please keep us updated.