Susannah sits next to 4 phonetic neighbors — Susanna, Susan, and Suzannah are the closest matches by sound. Most share Susannah's Hebrew-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"lily, graceful lily"
"life, living"
"beautiful, graceful"
"olive tree"
"whole, universal (Emma) + meadow (Lee)"
"from Scotland"
"winding valley"
"thunder"
"land ruler"
"beloved"
"unlucky one"
"joyful and graceful"
"trade wind"
"boar meadow, wild clearing"
"evening, twilight"
"kore — young woman"
"sacred song, hymn of praise"
"gift"
"pipe player, flute player"
"son of Maud (Matthew/Matilda)"
"vision, flag"
Similar sound: These names share phonetic patterns with Susannah — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Susannah.
Rhythm: Susannah is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.