Hernan sits next to 4 phonetic neighbors — Hernan, Hernando, and Fernando are the closest matches by sound. Most share Hernan's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"army man, bold traveler"
"nobleman, member of the patrician class"
"crowned one, garland-wearer"
"God has made, made by God"
"from the Fabius family, Roman patrician"
"gift of Yahweh"
"courteous, polite"
"famous ruler"
"god + famous"
"Yahweh is gracious"
"gift of God"
"holy name, name of God"
"God will save"
"one who helps or aids"
"great adviser"
"melody, song (mythological)"
"bright fame, shining might"
"modern coinage, origin uncertain"
Similar sound: These names share phonetic patterns with Hernan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Germanic via Spanish origins, giving them the same cultural heritage as Hernan.
Rhythm: Hernan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.