Janet sits next to 5 phonetic neighbors — Janette, Jeanette, and Janel are the closest matches by sound. Most share Janet's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is gracious"
"thunder"
"well-spoken, of good repute"
"joining, fitting together"
"noble kind (short form of Alice)"
"high tower"
"made of linden wood, gentle and protective"
"gift of God's grace"
"beautiful lion"
"born on Christmas Day"
"modern phonetic name, variant of Braylee"
"supplanter"
"exalted, ascendant"
"sky, heaven, royalty (via Hawaiian lani)"
"pledged to God, my God is an oath"
"heavenly, sky princess"
"fictional Water Tribe warrior"
"navigator, of the navy"
"safe place"
"who is like God"
"noble protection"
Similar sound: These names share phonetic patterns with Janet — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Janet.
Rhythm: Janet is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.