I just feel like it would be a good addition to the game's workshop as there's probably going to be a constant stream of maps being uploaded to differentiate the sizes of the maps

Tiny
Small
Normal
Standard
Large
Huge
Gigantic
Titanic
Iceberg
Custom

(Probably didnt need to name the sizes but just so you get the idea)

And other tags for different types of worlds

Empty
Populated
Art

And maybe even types of maps people have created, like what the world is like

Real World
Archipelago
Continent
(those types of maps that aren't full countries? Like https://prnt.sc/23ogx1a , I didn't know how to explain it, please comment what it is)
Fantasy/Pop Culture

Feel free to add more/less