There are so many things to consider. Do you have the time to own a dog? They’re much more needy than cats. If you travel it can be tricky. Also, some people think small dogs need less walking, but they actually need more because they have more energy than large dogs.
Where do you live? In Los Angeles there are busy streets and coyotes. Much potential for animal danger if you have an outdoor cat.
Do you REALLY wanna know fellow dog owners?
Though I have to say, when I owned a gorgeous husky/german shepherd growing up, I had all sorts of game because of her. But I didn’t really need it for the majority of those years, seeing I was in my prepubescent years.
If you know you’re a cat person, I’d say go with your gut and get a cat. You can always get a dog later.
I say all this with the caveat that I have TERRIBLE pet luck. So you probably don’t want my advice on this matter anyway ….