Bryden sits next to 3 phonetic neighbors — Brayden, Braden, and Ryder are the closest matches by sound. Most share Bryden's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"broad valley, wide hill"
"modern American invented variant of Zayd"
"shining, bright"
"modern invented name"
"God has strengthened"
"God has helped"
"talent, ability, brilliance"
"broad hill"
"of God"
"the Lord is salvation"
"ornament, necklace"
"tranquility, harmony"
"tube, channel"
"to offer, to announce"
"dwelling near the church"
"fashionable, sharp (modern connotation)"
"powerful, mighty"
"warlike, martial"
"to carry, to bear"
"junior, the younger one"
"heart, mind"
Similar sound: These names share phonetic patterns with Bryden — 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 Bryden.
Rhythm: Bryden is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.