Gerald sits next to 3 phonetic neighbors — Harold, Gerard, and Jerald are the closest matches by sound. Most share Gerald's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"rule of the spear, spear ruler"
"cedar tree, resinous wood"
"salmon"
"Caesar (imperial title)"
"gift"
"strong, upright"
"Harry's son, son of the ruler"
"spear warrior"
"crow, raven"
"roofer, one who covers"
"crooked enclosure"
"Yahweh has shown favor"
"strength, permanence"
"genuine, authentic, honest"
"one from the British Isles"
"son of the red warrior"
"from the River Kelvin, narrow river"
"flame, fiery one"
"swiftness, fleetness"
"invented elaboration of Kameron"
"goodness of Yahweh"
Similar sound: These names share phonetic patterns with Gerald — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Gerald.
Rhythm: Gerald is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.