I think it would be a nice addition to rank the names. At the top would be ones that work really naturally in both languages. Lower down would be names that wor

I think it would be a nice addition to rank the names. At the top would be ones that work really naturally in both languages. Lower down would be names that work naturally in one language but only work OK in the other. Naturalness might be tricky to define, though. Really common names are probably natural by definition, but uncommon names may also be natural. For example, Roman isn't a common name, but it's natural. Another thing to take into account is if there is a more natural equivalent. For example, it is OK in English to name someone Antonio, but Anthony is the more-English version. One of the core issues is whether you're looking for names that occur in both languages by coincidence or ones that have been borrowed because of cultural overlap. Maybe you're looking for a name that both cultures understand, or maybe you're looking for a false cognate that just happens to work in both languages.