Lyam sits next to 3 phonetic neighbors — Liam, William, and Lyom are the closest matches by sound. Most share Lyam's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"resolute protector, strong-willed warrior"
"one who catches fish"
"city of the moon"
"diminutive of Scott"
"crow, raven"
"beautiful, handsome"
"son of the praised one"
"descendant of the king"
"salmon"
"ruler of the army (Scandinavian form)"
"chief, lord"
"great one"
"powerful counselor (via Ronald)"
"from the crooked stream"
"new house (place name)"
"earthly, of the earth"
"from the mouth of the Roe river"
"outer wall of a castle (bailey)"
"modern blend of Tyler and Dylan"
"yellow, golden"
"James reversed — an ananym honoring the name James"
Similar sound: These names share phonetic patterns with Lyam — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic via Irish origins, giving them the same cultural heritage as Lyam.
Rhythm: Lyam is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.