Lamar sits next to 4 phonetic neighbors — Lamarr, Lamont, and Tamar are the closest matches by sound. Most share Lamar's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"of the sea, of the lake"
"victory of the people"
"moon"
"brave power"
"warrior, battle"
"modern blend: bright house, highest point"
"woodland clearing used for hunting"
"bold, daring (thunder-bold)"
"rye land; land where rye grows"
"son of Evar; son of the boar"
"from the River Irvine"
"divine power"
"warrior"
"one who observes, explorer"
"flowing down (from Jordan)"
"follower of Dionysus, god of wine"
"tumult, noise"
"to move swiftly, energetic forward movement"
"forest guardian, one who patrols"
"from the heath"
Similar sound: These names share phonetic patterns with Lamar — 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 Lamar.
Rhythm: Lamar is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.