Tidus sits next to 4 phonetic neighbors — Titus, Ty, and Cyrus are the closest matches by sound. Most share Tidus's Japanese cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"sun"
Similar sound: These names share phonetic patterns with Tidus — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Okinawan origins, giving them the same cultural heritage as Tidus.
Rhythm: Tidus is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.