Ren sits next to 4 phonetic neighbors — Wren, Ben, and Zen are the closest matches by sound. Most share Ren's Japanese cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"join, connect"
"Hospitable, guest-friend"
"modern invented blended name"
"earth, land"
"high ground"
"beloved, hidden"
"adored, beloved"
"who is like God?"
"high, exalted, sublime"
"feminine form of Ilan (tree)"
"Meadow of the roe deer"
"phonetic initialism (J.C.)"
"from the River Slane"
"female traveler, voyager"
"lion of God (as short form of Ariel)"
"eternity, immortality"
"beautiful lion"
"of the Franks tribe"
"divine nature, godliness"
"victorious"
"flask of kohl (cosmetic)"
Similar sound: These names share phonetic patterns with Ren — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Japanese origins, giving them the same cultural heritage as Ren.
Rhythm: Ren is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.