Karlos sits next to 4 phonetic neighbors — Carlos, Carl, and Marcos are the closest matches by sound. Most share Karlos's Spanish-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"free man, man"
"from Rome, strong"
"daring adventurer"
"beyond, on the other side (of the river)"
"son of prophecy"
"God has shown favor"
"friend of elves, wise companion"
"of the mountain"
"short form of Santiago (St. James)"
"great, powerful"
"My God is Yahweh"
"alive, full of life"
"rival, eager to emulate"
"famous journey"
"giant, honorable"
"free man"
"raised by Yahweh"
Similar sound: These names share phonetic patterns with Karlos — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic origins, giving them the same cultural heritage as Karlos.
Rhythm: Karlos is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.