I have Xduoo and Fiio's like both. Don't know if they are the best but am sure they can drive your headphone. I used both as DACs as well and they sound just as good as my other DACs that cost much more.
Edit: Sorry I just realized you are asking about DACs under $200 so the Fiio is out. I would still recommend the Xduoo TA-01 over the DACMagic XS, much less portable but still portable enough, but more fun to use and sounds better subjectively.