Ikaika sits next to 3 phonetic neighbors — Kai, Kaika, and Maika are the closest matches by sound. Most share Ikaika's Hawaiian cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"strong, powerful"
"Han dynasty, Chinese people"
"energy, spirit, vigor"
"son of Matthew"
"Southern American place name as given name"
"son of Max, son of the greatest"
"combination of ke- (prefix) and Marion (beloved)"
"supplanter, one who grabs the heel"
"twin (Thomas variant)"
"gift from God, he who is sent"
"The Lord is my God"
"the great beast, tiger"
"son of encouragement"
"noble lineage (adal) and eager (funs)"
"one who sets traps"
"captain, governor"
"the great river (via Zaire)"
"beautiful, good"
"from the east, eastern settlement"
"son of the sea, born from ocean waves"
"fidelity, eternity"
Similar sound: These names share phonetic patterns with Ikaika — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hawaiian origins, giving them the same cultural heritage as Ikaika.
Rhythm: Ikaika is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.