N. campanulata is good, and adnata is excellent also.
If you can get flytraps cheap(like on PFT on loccasion), you could grow them that way. When they start to wane in vigor, they are telling you that they are getting tired, and then you can pull them out, cut the leaves and put the bulb in slighly damp sphag in the fridge for about four months.
N. gracilis might make a good choice as it is not big in diameter, but it scrambles a lot. If it starts vining up, you can set it in a different direction, or clip and and see if a basal forms. you might get a very bushy plant.