Rigel sits next to 3 phonetic neighbors — Nigel, Regel, and Regal are the closest matches by sound. Most share Rigel's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"foot (of Orion)"
"son of (Celtic prefix) + divine"
"learned, one who knows"
"tavern keeper"
"of Mars, warlike"
"to be filled with wonder and admiration"
"firebrand, spark"
"the Lord is righteous"
"son of Madoc (gift of God)"
"son of the brave, warrior"
"God is gracious (via Zane/John)"
"plant that grows in moist places"
"he who holds firm the good"
"from the fortified city"
"of the spring, from greatness"
"my king"
"distinguished ruler"
"place of convergence, meeting point"
"world peace, gift of the world"
"hay valley"
Similar sound: These names share phonetic patterns with Rigel — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Arabic origins, giving them the same cultural heritage as Rigel.
Rhythm: Rigel is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.