Forever sits next to 3 phonetic neighbors — Forrest, Felicity, and Everly are the closest matches by sound. Most share Forever's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"for all time, eternally"
"mythical auspicious creature"
"esteemed, beloved"
"something precious and greatly valued"
"all gifts"
"poetic vision"
"joyful, lively (phonetic suggestion)"
"work, industrious"
"refuge, shelter (from Hebrew azilah)"
"Hawaiian deity, sacred power"
"hazel tree"
"tailor, one who cuts cloth"
"little rock, steadfast"
"esteemed, valued"
"joyful, lively"
"heavenly, divine blossom"
"elm tree joy"
"to love, to wish (proto-Indo-European root of Veneti)"
"industrious, hardworking"
"valley of the River Kent"
"sweet water, fair river"
Similar sound: These names share phonetic patterns with Forever — 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 Forever.
Rhythm: Forever is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.