Ajax sits next to 4 phonetic neighbors — Alex, Axel, and Atlas are the closest matches by sound. Most share Ajax's Greek-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"of the earth"
"holder of the heel, supplanter"
"future, what is yet to come"
"the Lord is salvation"
"dark one, black-haired"
"zero, emptiness, infinite possibility"
"golden chamber, bay window"
"son of Aodh (fire)"
"fast sailing vessel"
"elf ruler"
"my covering is God; God protects"
"sky blue, cerulean"
"modern coinage from la- prefix and -trell"
"healer, to heal"
"modern invented name with energetic sound"
"pleasant stream"
"anointed one"
"gift of God's grace"
"descendant of Raghallach"
"my God is light"
"legendary king of Phrygia, golden touch"
Similar sound: These names share phonetic patterns with Ajax — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Ancient Greek origins, giving them the same cultural heritage as Ajax.
Rhythm: Ajax is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.