https://store.steampowered.com/app/5...ainter_Studio/
https://www.dungeonfog.com/
https://worldographer.com/ Watch the video to see it directly create a city simply by clicking on an icon in an overland map, then a building by clicking on a building in the city map by linking to https://www.dungeonographer.com/ & https://cityographer.com/
https://watabou.itch.io/medieval-fantasy-city-generator
And if you really want to go all out, this one is not for the faint of heart, nor is it aimed at fantasy worlds though it absolutely can (and has) been used for such:
https://www.esri.com/en-us/arcgis/pr...ngine/features