Would be interesting to see subcategories for buildings and zones, for example taller residential buildings would be categorized as "high density" and houses as "low density", kinda like Cities: Skylines. It's a little jarring to have an apartment building pop up in your quaint little suburb. Would be nice to be able to have zones that specify the height/style of building you want to appear.

That would mean alot of mods would have to be altered to reflect the change but I think it would make cities more cohesive looking overall.