Purchasing the Venture Electronics VE ZEN, and looking for a portable amp for an iBasso DX50 that could power them.

Was interested in buying a DAP (iBasso DX50 or Shanling M1), but I'm also interested in the AudioQuest Dragonfly since I mostly store and listen to my music on my phone. So between the two are there any differences or advantages over one or the other?

Looking for a pair of custom IEMs for punk/emo/indie rock music and a lot of self produced music recorded on phones and home studios (The Front Bottoms, Modern Baseball, Empire! Empire!). Was looking into Noble Audio, but they changed their entire line up, any idea on what a good custom IEM...