Gaines sits next to 4 phonetic neighbors — Gane, James, and Raines are the closest matches by sound. Most share Gaines's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"to gain, to win, to cultivate"
"hilltop lake"
"sharp, intelligent"
"to flow down, descend"
"variant of Terrell; earth puller"
"of or relating to an epic poem"
"hill, burial mound"
"son of Walter, ruler of the army"
"from the new estate"
"modern invented name, strength implied"
"son of Stephen, one who wears the crown"
"claw, swift predator (via Talon)"
"dweller by the hedged forest"
"handsome, beloved"
"keeper of the keys"
"loved, beloved"
"wolf counsel (from Ralph)"
"appointed by God"
"young, heir (alternative)"
"handsome, distinguished"
"strength, prosperity"
Similar sound: These names share phonetic patterns with Gaines — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old French origins, giving them the same cultural heritage as Gaines.
Rhythm: Gaines is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.