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Not one of these needs another person. You can start tonight, stop when you like and never put a date in a diary -- drawing, reading, bread baking, crochet, fishing, writing fiction, playing the piano. The flip side is that nothing here brings people with it, so if what you actually want is a reason to get out of the house and meet someone, the social hobbies are the better list.
200 hobbies. Each has what it costs to start, how much time it takes and a first session to try.