Are you requiring a 10Gbe Rj45 switch with PoE? If so, tough call, even for used market.
This yeah, ideally with at least enough 10GbE copper ports that can do PoE for the WAPs (though more would be good, the house I'm going to end up running them in is being built atm and it'd be nice to have 10GbE available at workstations/etc. I made sure the spec for the house would be fine for 10GbE over copper all over. (Plus a sneaky draw through wire for fibre between the comms rack under the stairs and the 8 car shed at the back of the property that will have my louder gear.)
I know I could always just do 3 switches, 1 x Ubiquiti XG Enterprise (for my regular gear), 1x Ubiquiti XG 6 (for PoE 10GbE copper WIFI6 WAPs) and 1 x regular PoE switch for all the gear that will be 1GbE like the cameras and home assistant yellow/etc but it's a lot messier than I'd like.
Do they even make PoE+ injectors that support 10GbE? If they do realistically I can just go with my original plan of the Ubiquiti XG Enterprise or something like that (tho I do also have concerns about their gear failing immediately out of warranty based on some anecdotal experiences some of my coworkers/friends have had)