Joss sits next to 2 phonetic neighbors — Josh and Ross are the closest matches by sound. Most share Joss's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"one of the Goths"
"fair-haired one"
"invented modern name"
"priceless, praiseworthy"
"land by the winding stream"
"forever, always + wind/fighter (Ey + vindr etymology)"
"deserving of praise, earned reward"
"to gain, to win, to cultivate"
"modern invented name, strength implied"
"bold confidence, striking presence"
"well-formed, handsome"
"surname used as given name"
"salmon"
"strong, firm, enduring"
"mold, form (original Arabic root)"
"dark, full; complete darkness"
"God is gracious"
"to cry out, a wolf's cry"
"to shine, tremble with light"
"divine strength"
Similar sound: These names share phonetic patterns with Joss — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Joss.
Rhythm: Joss is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.