Gibson sits next to 4 phonetic neighbors — Gideon, Winston, and Hudson are the closest matches by sound. Most share Gibson's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Gilbert, son of Gib"
"powerful (alternative interpretation)"
"of the angel, messenger of God"
"fair, white, bright"
"short form of Nathan/Nathaniel"
"middle of the plain (city name)"
"fortified place, protection"
"bold, fearless one"
"of God, heavenly"
"bright, splendid"
"dark one, little dark one"
"remnants of the lake"
"king, ruler"
"crown, wreath"
"God is salvation"
"steps over a fence or wall"
"wish, desire, ideal (Persian variant Arman)"
"horseman, from the Cheviot hills"
"creative sound combination (no definitive meaning)"
"surname derived from topographic ridge"
"cliff settlement"
Similar sound: These names share phonetic patterns with Gibson — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have English origins, giving them the same cultural heritage as Gibson.
Rhythm: Gibson is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.