Hey, i know that the boss chormatic tuner can also be a power supply if there's a daisy chain, but are there others?
None are power supplies, its more of a power pass through. Be aware that they can only power 200mA usually, too.
When Boss say some of their pedals can act as power supplies (ns-2 etc.) they are lying (or close to it). They do not provide power in any shape or form. All they do is act as an elaborate daisy chain. You're better off buying whatever tuner you want and then getting a daisy chain.