Gerard sits next to 4 phonetic neighbors — Gerald, Garrett, and Gerhard are the closest matches by sound. Most share Gerard's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"brave spear, strong with a spear"
"no one equals God"
"valley, narrow glen"
"well-born, noble"
"Yahweh has shown favor"
"little seal"
"divine, of the god of wine"
"pointed hill"
"dear, beloved (associated folk etymology)"
"warrior, battle"
"free man, warrior"
"place of elms"
"black gemstone (fossilized wood)"
"one who works with slate"
"elf friend, noble friend"
"man of the people"
"word name from archery term"
"son of Hans/John"
"mill town, settlement by the mill"
"bright pledge, noble hostage"
Similar sound: These names share phonetic patterns with Gerard — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old High German origins, giving them the same cultural heritage as Gerard.
Rhythm: Gerard is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.