Lysander sits next to 4 phonetic neighbors — Alexander, Leander, and Lysander are the closest matches by sound. Most share Lysander's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"liberator of men; freer of man"
"champion, famous one"
"of the Cornelia family"
"muddy farm or settlement"
"firebrand, burning torch"
"champion (from Old Irish Niall)"
"born from the ocean, son of the sea"
"from the darnel field"
"atmospheric mist, haze"
"round hill, hillock"
"little red-haired one"
"spear servant"
"slender one"
"eighth-born"
"Broken land, marshy area"
"powerful ruler of the household"
"Isle of Skye, Scotland"
"white field, white acre"
"son of the reeve, estate manager"
"one who lives near a steep bank"
"uncle"
Similar sound: These names share phonetic patterns with Lysander — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Ancient Greek origins, giving them the same cultural heritage as Lysander.
Rhythm: Lysander is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.