I can’t seem to pull up my post history but I’ve asked something similar before if you can see one of my few posts. In there people say they’ve been successful with a few kinds of headphones.
I currently run an abomination of a 4 way physical mixer with 2 input jacks and 2 Bluetooth receivers – into 1 output Bluetooth. If I need to travel lighter I fallback to software for 2 to 1.