Ashby sits next to 5 phonetic neighbors — Ashley, Asher, and Kirby are the closest matches by sound. Most share Ashby's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"ash tree farm, settlement by ash trees"
"slender, narrow"
"song, nightingale"
"son of Andrew"
"foot (of Orion)"
"eternal ruler, ever powerful"
"modern invented name combining Ryan and Ivan roots"
"bequest, inheritance"
"command of Aku"
"prince of God"
"devoted to God"
"warlike, of Ares"
"narrow strait, channel"
"color, vibrant shine"
"light"
"watchful, alert"
"powerful in battle (alternate interpretation)"
"son of coal, dark strength"
"God is beloved"
"man of the olive tree"
"broad clearing, wide meadow"
Similar sound: These names share phonetic patterns with Ashby — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old Norse origins, giving them the same cultural heritage as Ashby.
Rhythm: Ashby is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.