Rie, Rika, and Ria are popular first names in the Netherlands.
And here 's a list of towns, scroll down to find all towns that begin with R. Not a promising source of ideas, because Dutch is not a very accessible language for the avg american. The city Rijsvijk is pronounced like Rice-Vike, but it would sure be entertaining to hear an announcer attempt it.
That said, I see “Radio” is a town name. Even though the dutch connection won’t be obvious (and they would pronounce it “RAHdio”), it has potential for some cute names like Radio Flyer, Radio Flygirl, Radio Silence, Radio Star