AudreyComeau's list "Favorites (M)" of 3 great name ideas: Kieran - Jupiter!

Favorites (M)

Long popular in Ireland and England, Kieran, the name of Ireland's first-born saint and twenty-five other saints, has been building its U.S. fan base thanks to its strong and attractive sound, and its fashionable Irish brogue. While Ciaran is the more authentic Irish spelling, Kieran is more popular this side of the Atlantic. 
 Julianna Margulies chose Kieran for her son, and Kieran is a Culkin brother to Macaulay and Rory. Kier is an attractive short form, and Kiera/Keira is Kieran's girl twin.

Kieran

Gentle but solid, as much of a word as it is a name, Robin is a rising star in the US, and a favorite in Belgium, France, Czechia and Switzerland. With memorable namesakes like Robin Hood, Robin Williams, Christopher Robin, and Robin the Boy Wonder, a recent year saw Robin feature as a gender neutral choice in the US, ranking at #703 for boys and #704 for girls.

Traditionally used as a Medieval English diminutive of Robert, Robin is just as likely to bring to mind the bird, and it was likely this that led to its usage as a unisex choice. In the US, its high point for both genders was in the 1950s when it ranked in the Top 150 for boys and the Top 30 for girls.
 
A neutral choice in the Netherlands, it ranks either exclusively or more highly for boys in the UK, France, Switzerland, Estonia, and Belgium.

Robin

Jupiter's partner Juno has entered the mainstream, so it's possible that her divine mate could follow. But not necessarily for boys — Jupiter is currently mostly female in the US, thanks to its similarity to Juniper. Stars including Ed Sheeran and Ashley Tisdale recently welcomed daughters named Jupiter, which could shift the balance even more towards the girls.

The name of the supreme Roman deity and the largest planet has until recently had either too hippie or too grandiose a feel for most mortals, but with the rise of sound-alike Juniper and space names such as Orion and Mars, Jupiter may find new favor.

Short form Jupe is adorable.

More background on that deity: Jupiter was the king of the Roman gods, and god of the sky, the equivalent of Greek Zeus. His name may have originated as a title. It can be interpreted to mean "father of the sky" or "father of the gods" (dyew-peter > iou piter > iuppiter (the form of the name used in Latin) > Jupiter). With Juno and Minerva, he made the Capitoline triad, whose worship was at the very centre of Roman religion.

Favorites (M)

The names

Kieran

Robin

Jupiter