There's one option missing from your poll: "None of the above, i have a better idea, check the comments."
Yes! have like a nether farmworld and a regular nether so we can build there. Nether builds are awesome!
Doesn't necessarily need to be in spawn. there could be different admin grief protected areas of the map with functionality like a villager trading town. Might add some diversity in where players settle down so different player towns pop up in different places. just an idea idk if it would work better to have everything at spawn so less of the map would need an admin protected area
I'm not going to say the name of the server but I've been playing on a Vanilla 1.16 server that has data packs installed and it's been a lot of fun not only has there been multiple towns that sprouted up but there seems to be some roleplay elements involved as well (different towns have allied themselves with others and made enemies of other's though I don't see that being the case here on MYM)