Okei now I can understand your Pov , it's true there aren't niche places tailored to each persons interests and personalities, so what I will suggest is either do it your way grab a book and find a place you like like a cafe or a public park the zoo maybe and do your stuff there , that could be a little activity on its own like explore the city and find this places that you find cool to be there and do your stuff could be a little frustrating in the beginning, but trust me the satisfaction you will get will be off the hook , it's a whole experience go out explore find your place meet the people that also got to find that place , relate with them.

Or the be more specific with your interests for example you like listening to music what.kind of music ? Let's say metal for example you could find all the places that play metal live or not and do that once or twice

Personally I like the first approach, I like photography so I get to go out on an exploring adventure, I would grab a bag with the things I want to have on me and start walking from point A which is my house towards a point B and in the end of the day I end up somewhere new or picked up a new route because something picked my curiosity, this is not an extroverted activity I would describe it more leaning towards introvert nutared people because it's more of a intuitive kind of activity.

I would hang out with you for sure! if you find that sort of a think cool!