Briar sits next to 4 phonetic neighbors — Brier, Bryce, and Pryor are the closest matches by sound. Most share Briar's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"thorny shrub, bramble"
"bitter, beloved"
"lily flower, pure"
"sea, ocean"
"son of Coinneach, the fair one"
"gift of God"
"ambergris, waxy substance"
"marsh flower"
"pledged to God"
"full of love"
"pearl"
"peace, world"
"halo of light around the moon"
"man of God, hero of God"
"free woman, song of joy"
"ruler of supernatural beings"
"seven, completeness, divine perfection"
"clear (as in clear skies)"
"woman from Magdala"
"bright village"
"of the Tatius family"
Similar sound: These names share phonetic patterns with Briar — 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 Briar.
Rhythm: Briar is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.