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"
"variant of Nathan: God has given"
"crooked nose"
"supplanter, one who follows at the heel"
"woodland near the elder trees"
"settlement by a bird-trap"
"gentle, lenient"
"the shining one"
"God has remembered"
"settlement by the bridge"
"green/fresh river"
"anglicization of Welsh Llwyd"
"defender of men (short for Alexander)"
"son of Brice; son of Bryce"
"initial-name, typically Andrew James or Anthony John"
"rapid water"
"high will, desiring much"
"great tide, sea wave"
"horn, strong-willed"
"rocky stream"
"salmon, descendant of the salmon"
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.