-ești, -ov, -oara
A few months ago, I saw the web project -ach, -ingen, -zell, an interactive visualization of German town suffixes and their distribution across Germany. -ești, -ov, -oara is a version for Romania.
The suffixes were chosen in consultation with @sarnthil, and are (like in the original) pretty arbitrary, since no morphological analysis is being done; we’re just looking at the raw endings.