Peugeot is the gold standard. The traditional hourglass shape is around $40-50 for the normal-sized version, and they have a lot of other modern designs. A lot of competing brands buy the internal mechanism from Peugeot.

(If you're curious about the name: Yes, it was originally the same company as the Peugeot car/motorcycle company. It was spun out into a separate company at some point, but still owned by the descendants of the original Peugeot family.)