Best thing I got aftermarket (and I have gotten it all) was a 15' active cable NOT the oculus one, mine was ~$25 and works great.
The next most important thing imho would be any headstrap other than the one that came with the set
Here's the cable, keep in mind this is usb c to c, you may want the c to a
Cable Matters Active USB C Cable 16.4 ft for Oculus Quest 2 Headset and Hard Drives (Compatible with The Oculus Link Cable Feature) in 5 Meters / 16.4 Feet - Not Compatible with Monitors or Docks https://www.amazon.com/dp/B08FVM2WTJ/ref=cm_sw_r_apan_glt_fabc_2RE9S8WH2VTHSBN61S3J?_encoding=UTF8&psc=1
Edit: shit, you wanted sold by. Idk, I would still consider the cable and use your credit on something else, the $80 oculus one is absurd
I bought this one and it works great with my Quest 2: