Joshuan sits next to 4 phonetic neighbors — Joshua, Josuan, and Jordan are the closest matches by sound. Most share Joshuan's Hebrew-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is salvation, God saves"
"rye meadow"
"from the Muscogee (Creek) Nation"
"thunder"
"broad meadow, wide clearing"
"permanent, perennial"
"short form of Andre/Andrew"
"my God is God, divine light"
"fortified stronghold"
"of the river (if -von is from Welsh afon)"
"supplanter"
"dweller at the white enclosure"
"vivid, alive"
"spear, from the oak grove"
"spear, warrior"
"one who lives by hawthorn bushes"
"steward, household manager"
"deep affection, tender devotion"
"from Rome, Roman citizen"
"speckled stone"
Similar sound: These names share phonetic patterns with Joshuan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Joshuan.
Rhythm: Joshuan is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.