Zeal sits next to 3 phonetic neighbors — Zeal, Neil, and Reel are the closest matches by sound. Most share Zeal's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"passionate devotion, fervor"
"strict, disciplined"
"variant of Riley: valiant, courageous"
"Brad's farm or town"
"flourishing, like a flower"
"modern invented name, variant of Javion"
"broad meadow, wide clearing"
"resolute, brilliant"
"white heart, blessed heart"
"from Rome, Roman citizen"
"thunder and lightning (via Raiden)"
"alder tree, from the grove"
"from the new home"
"Trey's town, three's farm"
"who is like God? (Michael, from Hebrew Mikha'el)"
"royal divine spark"
"invented name, possibly from Tariq (morning star)"
"modern American coinage"
"the great beast, tiger"
"diverse mixture"
"black, dark; time"
Similar sound: These names share phonetic patterns with Zeal — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek via Latin origins, giving them the same cultural heritage as Zeal.
Rhythm: Zeal is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.