I don't have a suggestion for a mixer to use here, but because I've got a similar dilemma myself I've considered some workarounds.
A number of wireless lavalier mics with USB output (Samson XPD2 being a prime example) allow direct output using a 3.5mm audio jack on a converter cable (e.g. 3.5mm...
I'm trying to set up a simple system to use for Zoom conferences. This would need to be a combination of a portable PA system, dual wireless microphone (one lavalier, one roaming handheld) input and both output to and input from PC or tablet. This system would be used for small conferences...