The now defunct (pretty sure) Peacock Data Inc. used to sell (~$300) a data set of names including spelling variations and their strength of relationship to oth

The now defunct (pretty sure) Peacock Data Inc. used to sell (~$300) a data set of names including spelling variations and their strength of relationship to other names. It included nicknames, variations across languages (e.g. "john" ~= "juan"), and typos. It even had different relationship types, each with their own dissimilarity measurement to their related names. I've never found anything remotely that comprehensive for names. A very efficient way of matching strings across typos (aka "fuzzy") is SymSpell, but just finds nearby lexical matches efficiently.