Lance sits next to 4 phonetic neighbors — Vance, Chance, and Grant are the closest matches by sound. Most share Lance's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"spear, lance"
"ruler, sovereign (from Julius Caesar's name)"
"western enclosure"
"Lord (via Kyrie element)"
"hollow, ravine"
"loved, beloved"
"lisping"
"maker of cases or boxes"
"praise"
"rest (via Rocco)"
"mind, intellect, spirit"
"prestige, luxury (cultural association)"
"barn dweller, farm settlement"
"twin"
"burdened, laden"
"God has given"
"valley, hollow"
"courteous, well-bred"
"gift of Yahweh"
"of, from (Dutch)"
Similar sound: These names share phonetic patterns with Lance — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have French/Latin origins, giving them the same cultural heritage as Lance.
Rhythm: Lance is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.