Feliz sits next to 3 phonetic neighbors — Felix, Felipe, and Elias are the closest matches by sound. Most share Feliz's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"happy, fortunate"
"heavenly messenger"
"wide, broad"
"bold counsel"
"from the hill by the loud river"
"wolf"
"work, labor"
"one who lives or works in the forest"
"Herd farm or livestock enclosure"
"excellence, superior quality"
"nourishing, restorative (plant name connection)"
"surname of English origin, possibly place or occupational"
"great, venerable"
Similar sound: These names share phonetic patterns with Feliz — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin via Spanish origins, giving them the same cultural heritage as Feliz.
Rhythm: Feliz is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.