A nice addition would be a separate tool (bundled with HP on a separate route) to search for JA3N from a known hashes database. Possibly this could also be used to "reverse search" from other data to the matching JA3N hashes.

For JA4H an useful tool would be a "decoder" (much like a guided documentation) for newcomers: inserting a JA4H it would "explain" the various fields and search for matching entries.