Lliam sits next to 3 phonetic neighbors — Liam, William, and Lliam are the closest matches by sound. Most share Lliam's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"Resolute protection; will-helmet"
"paradise, divine realm"
"one who makes wheels"
"improvement, change for the better"
"man of prayer, full of goodness"
"empty, hollow"
"protector of people"
"protector of people"
"rock, fortress"
"speckled, spotted"
"arhat, enlightened Buddhist monk"
"from Vinci (a town in Tuscany)"
"dawn, daybreak"
"enlightened, bright, clear"
"spear warrior"
"breath, vapor, transience"
"from the Brazos River, Texas"
"my strength is Yahweh"
"from Sebastia (ancient city)"
"firebrand, burning stick"
"invented modern name, possibly blade-valley"
Similar sound: These names share phonetic patterns with Lliam — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Germanic (via William) origins, giving them the same cultural heritage as Lliam.
Rhythm: Lliam is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.