Recommendations avoid excessive rhyming and favor compatible style, origin, era, and rhythm.
Borrowed from Irish Brian. Doublet of Brendan. Via English Brian from Irish Brian, ultimately from Breton Brien. From English Brian, from Irish Brian.
Borrowed from Breton Kadeg.
Borrowed from Breton Koneg.
Borrowed from Breton Koulm.
Borrowed from Breton Erwan.
Borrowed from Breton Iltud.
Borrowed from Irish Brian. Doublet of Brendan. Via English Brian from Irish Brian, ultimately from Breton Brien. From English Brian, from Irish Brian.
Borrowed from Breton Kadeg.
Borrowed from Breton Koneg.
Borrowed from Breton Koulm.
Borrowed from Breton Seva.
Borrowed from Breton Soazig, diminutive of Soaz.
Sibling matches balance shared style and origin with enough sound distinction, so recommendations do not simply rhyme with Maël.