Headphone amp and dac advice needed

Here's what's happening.

After almost 3 years of working from home where my main system is in my office, I'll be going back to the office in January.  I have a pair of Audio Technica Bluetooth headphones I used with my phone.  Sound wasn't great, but it worked for background music.

Now that I've been spoiled by great sound for almost 3 years, I want something better, so I'm looking for a good desktop dac and headphone amp (or combo unit).  I'd like to keep it under @1K US as I'm also going to consider a new set of wired headphones.  I already have a set of Grados, but I'm intrigued by the planar magnetic phones out there now.  I'd also like to have the option of using Bluetooth headphones for when I'm moving about the office.

Nice to have for the dac:  Bluetooth input, balanced line out.

Nice to have for the headphone amp:  Balanced input, balanced and se headphone outs, Bluetooth transmitter.

I have a little experience with dacs, but no real experience with headphone amps.  Thanks in advance for any guidance you might be able to provide.