DAPs aren't powerful. Even with their little OPAMP upgrades they sometimes come with.
For portable use, I would recommend the Fiio A5, Creative E5, the iFi iDSD Nano, iFi iCan SE or the iFi iDSD Micro Black Label.
Other ones I haven't really used include the Cayin C5 if you can find it and the Digizoid ZO fs or fs+ which I REALLLLLY wanna get one day.
Seems like a basshead's wet dream lol.
For desktop use, there's all the usual suspects, Monoprice Liquid Spark, JDS Labs Atom, Schiit Magni (commonly stacked with the Modi and rarely with the Loki for tone controls).
There are others like the Emotiva Basx A-100, audio gd NFB-11.28, Aune X7S, Drop (formerly Massdrop) THX AAA 789, Burson virtuosso conductor v2+ and it's AMP only variant.
Too many to list really. Need price bracket and functionality.