Boney sits next to 4 phonetic neighbors — Bonnie, Tony, and Beau are the closest matches by sound. Most share Boney's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"good, well-born"
"high, noble, strong"
"friend (invented by J.M. Barrie from 'fwendy')"
"broad fortified settlement"
"dark, brown-haired one"
"golden brown; tawny"
"rounded lump, cobblestone"
"fond of horses"
"invented name with La- prefix (the) and Voris (from the ford, Dutch..."
"adventurous, wanderer"
"ever powerful"
"label, identifying mark; to touch lightly"
"rocky ground"
"noble kind"
"renewed in spirit"
"the king"
"shield wolf (derived from Randy/Randolph)"
Similar sound: These names share phonetic patterns with Boney — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have French bon origins, giving them the same cultural heritage as Boney.
Rhythm: Boney is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.