Lesli sits next to 5 phonetic neighbors — Leslie, Lesley, and Kelsey are the closest matches by sound. Most share Lesli's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"garden of holly"
"flower"
"precious gem from the sea"
"Yahweh has shown favor"
"sea and sky"
"resurrection, she who will rise again"
"beautiful, gentle, precious"
"brave, powerful ruler"
"law, rule, model conduct"
"table, flat-topped plateau"
"joyful song, joy"
"variant of Kylie, meaning boomerang"
"divine grace, gift of God"
"combination: Ana (grace) + Lea (meadow/weary)"
"daughter of poverty (alternate etymology)"
"grace, charm"
"of Jove, sky blessing"
"of the lyre, musical one"
"white ring, blessed ring"
"lake, waterfall, pool"
Similar sound: These names share phonetic patterns with Lesli — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Scottish Gaelic origins, giving them the same cultural heritage as Lesli.
Rhythm: Lesli is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.