Looking for a black or gray cat

I recently lost both of my dogs who were both service animals.
I’ve tried to go without having a pet for a while, but it’s not very good for my mental health.
Having something to care for and love helps me deal with my daily struggles.
I’ve decided I want to get a cat or kitten.
I don’t care about gender or breed, I’d just prefer to have a black or gray cat (but not limited to)