Lochlann sits next to 3 phonetic neighbors — Lachlan, Loclan, and Logan are the closest matches by sound. Most share Lochlann's Scottish cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"land of the lochs, fjord-land (Scandinavia)"
"from Arcy, Norman town"
"champion, noble one"
"bright-headed"
"king"
"son of the devotee of Saint Fillan"
"high and mighty, chief"
"graceful warrior"
"warlike, fighter (from Thracius)"
"pearl of wisdom"
"truth"
"swift, quick"
"clerk, scholar, scribe"
"great, rocky hill"
"Winda's homestead, windy village"
"battle, round barrel"
"strong as a hound"
"hedgerow, boundary"
Similar sound: These names share phonetic patterns with Lochlann — 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 Lochlann.
Rhythm: Lochlann is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.