Seeing that still too many countries on OGF are unoriginal, English-speaking US analogues, I would like to offer my help creating conlangs and cultural descriptions.
While a fully functional conlang is not required for the purpose of creating toponyms, a significant vocabulary is.
Together, we will extrapolate the history of your country and decide upon the family and origin of the language(s). Then, I will proceed to create a Swadesh list and various toponym elements and write a list of sample place names (or place them into your country on the map).
It is easiest to derive a Romance or Germanic language by mixing, matching and applying sound changes, but of course, languages isolate are possible as well through appropriate use of word generators.
Please reply here or PM me if interested.