Lyon sits next to 4 phonetic neighbors — Leon, Liam, and Lyons are the closest matches by sound. Most share Lyon's French-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"lion"
"variant of Javion (possibly from Xavier — savior)"
"slender, gentle, delicate"
"servant of Marduk"
"son of the earth-man"
"linden tree hill"
"new house"
"descendant of the fair one"
"ocean person"
"of noble origin"
"he enlightens, God enlightens"
"hare meadow"
"YHWH saves"
"love"
"nonconformist, free spirit"
"large homestead"
"ruler of supernatural beings"
"God helps"
"valley of the hares"
"beloved, dear one"
Similar sound: These names share phonetic patterns with Lyon — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have French/Latin origins, giving them the same cultural heritage as Lyon.
Rhythm: Lyon is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.