Brother for Theo Cole James

This anglicized spelling of the already anglicized Alistair originates from the Scottish form of Alexander. Some might think it lacks the flair of the -air ending, while others might find it sleeker and simpler. Either way, in the US, it's the second most popular spelling after Alistair, ahead of both Alasdair and Alastair, while in the UK, it is in use, but least preferred of the four.

Extremely amiable, open-sounding surname that's gradually being taken over by the girls.

The name Barney is hot among hip Londoners and it has been above the Top 500 in the UK since 2012. You can see why - it's got a friendly happy sound and a lovely meaning and is more easily worn than Barnabas. However, Barney is a more difficult sell in America, due to Barney the Dinosaur and Barney Gumble, the loveable lout from The Simpsons. In the positive column for Barney are jazz clarinetist Barney Bigard and guitarist Barney Kessel. For those who love the name but can't get past the dinosaur, may we suggest the related names Bernard or Barnaby?

As modern as it sounds, Blaise is an ancient Christian martyr name. In Arthurian legend, Blaise is the name of Merlin the Magician's secretary. Its relation to the word and name Blaze gives it a fiery feel. Amanda Beard named her baby boy Blaise Ray.

Caden is a key member of the rhyming contingent that includes Aiden, Jayden, Kayden, Brayden et al. It may derive from the Celtic Cadan or Irish Cathán, both from the same root meaning "battle". It is also possible it comes from Cade, meaning "round" or "barrel".

Dylan still feels poetic and romantic after years of popularity. It still ranks highly on the charts, among the top boy names starting with D, so if you choose it, be aware that yours may not be the only Dylan in his class.

Gus is a homey grandpa nickname name that can work as a short form for any of the above or stand on its own as a cutting-edge replacement for Max and Jake--though it was off the Top 1000 from 1978 until 2016, when it squeaked in at Number 999.

You can ride one, you can use it as a baby name – or, as is often the case, both! Harley is currently trending up for girls and down for boys in the US, although it remains predominantly masculine in the UK. A lesser-used -ley ending choice for boys, Harley has a current sound but an old-school biker appeal.

A variation of Jenson, which is actually more popular than the original in the United States. This spelling also holds the distinction of being the most common surname in Denmark.

Kingsley is a sophisticated Harry Potter name that entered the US Top 1000 in 2013.

With the rising popularity of Kai, this more phonetic spelling has been gaining traction as well. Kye debuted in the US Top 1000 in 2015, and was one of the fastest-rising names of the year in 2016.

Harley is a tough guy, while the rhyming Marley has a softer, gentler image. The name brings to mind reggae great Bob Marley, as well as the lovable dog from bestseller Marley and Me.

Max was derived from Maximilian, a Latin name that originated from the Roman family name Maximus. The character name Max in the children's classic Where the Wild Things Are had an impact on baby namers. Max is a widely used name internationally.

Riley -- one of the most popular unisex names -- is trendier now for girls though for boys it's a classic, ALWAYS ranking in the US Top 1000.

This spirited Gaelic classic, which became popular in Ireland via the illustrious twelfth century king Rory O'Connor, makes a highly energetic choice, now used for either sex. Rory's gender split is still trending boyward; it's one of the coolest boys' names starting with R.

Sonny is one of the generic boy nickname names making a surprise reappearance, and it was recently used by actor Jason Lee. Another surprise: It's been on the US Top 1000 list every year since 1927, reaching a peak in 1975, when it hit Number 428.

Zeke is a casual form of the name Ezekiel, an important prophet from the Old Testament. How well Zeke holds up depends on the boy: it could be a cooler alternative of Zack, or it could prove too close to "geek." Both Zeke and Ezekiel lag behind in popularity on the UK charts.

Perhaps the ultimate nicknamey name, Ziggy manages to sound cool, cutesy, spiky, and energetic all at once. It brings to mind the glam-rock of Bowie's Ziggy Stardust and the cool vibes of reggae musician Ziggy Marley, along with the contemporary-but-vintage appeal of Teddy, Mack, and Albie.