Heston sits next to 4 phonetic neighbors — Weston, Preston, and Beston are the closest matches by sound. Most share Heston's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"settlement in the brushwood"
"son of Japheth, grandson of Noah"
"rider, horseman, mounted warrior"
"peaceful pledge"
"twin"
"beloved, dear one"
"hollow, small cavity"
"dweller by the mills, mill worker"
"hill, headland, enclosure"
"handsome, gentle"
"companion, friend"
"short form of Matthew"
"chamber, enclosed space"
"love, romantic feeling"
"Charles's settlement"
"pale, light-skinned"
"great tide, sea flow"
"ancient, enduring"
"from the mountains"
"strong will, brave resolve"
"white, silver (ancient root)"
Similar sound: These names share phonetic patterns with Heston — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Heston.
Rhythm: Heston is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.