Welcome. I am glad that you are considering getting another cat. There is always room for one more, right? I have always had better luck with males. Females seem to be more difficult to integrate with each other (or with males for that matter). But as others have said, there are always exceptions. My first 2 cats were females and they got along as the best of friends right from day 3 (days 1 and 2 were kinda touchy). Good luck with your choice.