Alexios sits next to 4 phonetic neighbors — Alexis, Alexei, and Aleksios are the closest matches by sound. Most share Alexios's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"defender of men, protector of the people"
"from the island of Cyprus"
"one who does not die"
"life"
"best purpose, superior aim"
"warrior spirit"
"the Messiah"
"blind one (folk etymology)"
"gift of God"
"goddess of night, primordial deity"
"gift of God"
"of the lion lineage"
"stone marker, boundary"
"heather, heath plant"
"lord, master"
"he who has the people distressed"
"king, ruler"
Similar sound: These names share phonetic patterns with Alexios — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Greek origins, giving them the same cultural heritage as Alexios.
Rhythm: Alexios is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.