Haru sits next to 3 phonetic neighbors — Haro, Haru, and Halo are the closest matches by sound. Most share Haru's Japanese cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"clear weather"
Similar sound: These names share phonetic patterns with Haru — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Japanese origins, giving them the same cultural heritage as Haru.
Rhythm: Haru is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.