Hazel sits next to 3 phonetic neighbors — Mabel, Sadie, and Daisy are the closest matches by sound. Most share Hazel's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"hazel tree"
"royal clearing"
"noble one"
"illusion, magic"
"the fall season"
"sunbeam, radiant one"
"born at dawn"
"golden light"
"strength"
"the sea"
"young, vital"
"heart"
"noble and powerful"
"Bright, shining light; torch"
"heaven (spelled backwards)"
"person from Scotland"
"may God add children"
"day's eye"
"awakening, offering"
"full of life"
"strong man of God"
Similar sound: These names share phonetic patterns with Hazel — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Hazel.
Rhythm: Hazel is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.