Jotham sits next to 4 phonetic neighbors — Nathan, Jonathan, and Gotham are the closest matches by sound. Most share Jotham's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is perfect, Yahweh is upright"
"bright counsel"
"head of the pass"
"young wolf"
"forgetting, making forget"
"variant X-spelling of Zane"
"from the Muscogee (Creek) Nation"
"one who struggles with God"
"noble's settlement"
"wealthy, prosperous"
"victorious"
"one who tills the land, farmer"
"imperial authority"
"brother (informal)"
"little joy"
"trust, reliance"
"auspicious, favorable"
"little fire (via Aiden root)"
"from the rye meadow"
"fashionable, sharp (modern connotation)"
"dwelling near the church"
Similar sound: These names share phonetic patterns with Jotham — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Jotham.
Rhythm: Jotham is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.