Sheena sits next to 4 phonetic neighbors — Shina, Shayna, and Sheila are the closest matches by sound. Most share Sheena's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is gracious"
"big happiness, great light"
"origin, beginning, birth"
"life"
"brand name used as given name"
"grace, favor"
"place name used as given name"
"lily flower"
"consistent, reliable presence"
"Silver, bright, pure"
"dew of heaven, my dew"
"of Mars, dedicated to Mars"
"lion-hearted"
"dwelling by the meadow valley"
"love, my love"
"azure, referring to the Azores islands"
"female heir, inheritor"
"compassion, kindness"
"lake, waterfall"
"divine play, cosmic game"
"variant of Sheila (blind one, or heavenly)"
Similar sound: These names share phonetic patterns with Sheena — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew via Gaelic origins, giving them the same cultural heritage as Sheena.
Rhythm: Sheena is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.