I've bought tons of them. My wife disliked most so to keep things simple I'm now down to the one we both really like. I'm feeling old school in the sense that most men used just one AS and I'm liking the minimalist approach as far as aftershave is concerned. Blades, soaps, and brushes: That's another story!I have never bought a matching aftershave, though I have been tempted at times.
Like some of the others, I use scent-adjacent aftershave when possible. For example, if I shave with Blue Devil Soap in the Peach and Pear scent, I use PAA Star Jelly aftershave in Immortal Peach. (By the way, I agree with an earlier poster that there is something positively magical about the Star Jelly aftershaves... can't recommend highly enough.)
If I shave with a citrusy soap, I use a citrusy aftershave, etc.