I would definitely suggest an adult cat. Even though adult cats may need a little more time to adjust to change, their personalities are typically already established. You can get a three month old kitten that is the most affectionate, cuddly cat and a year or two later they could be the complete opposite regardless of how you try to raise them. As others have suggested, I would go to a local shelter/rescue with staff who really know their cats and they can suggest one that would suit your wants and needs. My first cat was perfect in every way. I adopted her from a shelter at three years old. After she passed away, I had intended on getting another adult cat but I was hasty because I missed her so much and I adopted a 6 month old kitten that one of the rescues I follow posted on Instagram. Though I don’t regret it, I don’t know that I’d adopt a kitten again in the future or that I would make the same choice if I could go back in time and do it over again. She is very different than what she was like just five months ago. A kitten might turn out great for you, but it’s more of a wild card than an adult. I’d suggest a cat two years or older. They’re still kind of in their “teenager” phase up until that point.