Nice idea. I'll share my setup as well!
Headphones: Beyer Dynamics DT1990 Pro (home use) Bang & Olufsen H95, Sony WH-XM5 (outside)
Looking to get a nice pair of wireless in ears too but unsure what to go for
Interface: Topping DX3 Pro+ (DAC+AMP)
I have a pair of Edifier speakers that I got 7 years ago that are super budget but sounds pretty nice for the price for my desktop. That's probably the next bigger upgrade to the entire setup!
Haha yeah the positional audio is really really good with them. I actually switched from Hifiman Sundara to them because of comfort and fit. Didn't help that the Sundaras got some weird static thing going on with my chair material so it wasn't making the DAC happy at all