Chestin sits next to 3 phonetic neighbors — Chester, Justin, and Weston are the closest matches by sound. Most share Chestin's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"from the fortress town"
"God is gracious"
"the greatest"
"noble, nobility"
"son of William"
"divine supreme being, cosmic power"
"born of fire"
"God ruler; one who rules with divine authority"
"drawn from the water"
"narrow channel, strait"
Similar sound: These names share phonetic patterns with Chestin — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English/Latin origins, giving them the same cultural heritage as Chestin.
Rhythm: Chestin is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.