I'll admit that
Hiram looks nice written down -- yet all I hear is hire 'em. I can understand the attraction to the name, though. Of your combos, I like
Hiram Gabriel best followed by
Hiram Jonathan.
Re:
Elias, I do like this one although I prefer the long e pronunciation (rather than the 'lie' one). Combos: I like
Elias Henry,
Elias Jude and
Elias Jonathan.