Is the Explorer 2 still the best option around its price or are there better options for a portable, MQA compatible, Roon tested DAC these days?

I’m not very familiar with this market, so am only aware of the Audioquest Dragonfly Red as being one alternative, although some reviews mention this might sound a bit brighter or more ‘insistent’ with the Explorer 2 being a bit smoother and more refined.

Anything which might be slightly more expensive which would be worth a little extra?

Will be used with Sennheiser HD300 Pro (as the noisy neighbours constant construction work is interfering with my work) and HD650 for pleasure.

HC: 861v4/ID40/LPS, DSP5000, DSP5000VC, DSP3100, SW1600, HD621, Oppo BDP-105, Sony VPL-HW55ES
2-Channel: Oppo BDP-105, TEAC VRDS-7/Trichord Clock 3/PSU, 551, Quad 303, Harbeth Compact 7ES-3, Kimber cables, Russ Andrews mains and supports.
Previous Meridian: 5000C, 5200SL, 7200.2, 6000, 562V.2, 568.2mm, 800v4, 808.2i, 818v2/v3, 861v8, 502