Elihu sits next to 4 phonetic neighbors — Elijah, Eli, and Elias are the closest matches by sound. Most share Elihu's biblical cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"He is my God"
"light, illumination"
"conquering, victorious"
"he who grasps the heel"
"olive tree"
"handsome at birth"
"desired, longed for"
"victory of the people (via Nicholas root)"
"dweller by the red river crossing"
"far-sighted, young (if from Cyrus)"
"God is gracious"
"variant of Avery: elf ruler"
"fortress, military camp"
"modern American creation"
"modern creative name; possibly from Celtic/Gaelic roots meaning 'fr..."
"possibly variant of Jaron (Hebrew: singing, crying out)"
"Yahweh has heard"
"lord, ruler"
"God is gracious"
"my lord"
"from the winding stream or lane"
Similar sound: These names share phonetic patterns with Elihu — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Elihu.
Rhythm: Elihu is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.