Sloane sits next to 3 phonetic neighbors — Stone, Sloan, and Lane are the closest matches by sound. Most share Sloane's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"raider, warrior"
"desert world (fictional)"
"one who honors God"
"dear, beloved"
"from the rocky peaks"
"invented modern name"
"race, swift movement"
"from the island of ships"
"from Texas"
"wild boar hunter"
"precious green stone; holder of good"
"son of the sea, great tide"
"gap, chasm"
"those who are allied"
"ordained minister's helper"
"beyond, on the other side (of the river)"
"warrior, slayer"
"invented modern name, possibly blade-valley"
"arms (of God)"
"nickname form of Roger"
Similar sound: These names share phonetic patterns with Sloane — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic origins, giving them the same cultural heritage as Sloane.
Rhythm: Sloane is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.