Sadiel sits next to 5 phonetic neighbors — Gabriel, Daniel, and Ariel are the closest matches by sound. Most share Sadiel's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is my joy"
"my God is Yahweh"
"God's song; singing of God"
"bald dove"
"friend"
"daytime, daylight"
"God grants blessing to the sorrowful"
"friend, companion"
"rival, eager to emulate"
"king + world (folk etymology)"
"victor's crown"
"dove"
"protector of men"
"made by God"
"traveler, wanderer, guide"
"mind-bold"
"to twist, to wrestle with"
"father of King David"
"God is gracious (through Juan/John root)"
Similar sound: These names share phonetic patterns with Sadiel — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Sadiel.
Rhythm: Sadiel is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.