Chester sits next to 3 phonetic neighbors — Hester, Jester, and Lester are the closest matches by sound. Most share Chester's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from the walled camp, fortress city"
"feminine form of Chester"
"gift of God"
"from the Scottish place called Melvin"
"free, javelin-thrower"
"nobleman, chieftain"
"peaceful ruler"
"lives near a brook or stream"
Similar sound: These names share phonetic patterns with Chester — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin via Old English origins, giving them the same cultural heritage as Chester.
Rhythm: Chester is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.