Which middle name for Graham?

I've recently upped my middle name count from one to two, because of all the girls names I need to put together. So, I was trying to do it for my boys, but for Graham, I've got myself stuck.

So far I have Graham James Ronan, Graham James Kellen, Graham James Robert, Graham James Adrian, and Graham James Sebastian, but I don't really love any of them. (I do love the names, but just not with Graham James.)

The rest of my boys list consists of William Nathaniel Cole, Simon Peter John, and Henry Daniel James.
Any suggestions?

Graham James Robert fits with the others best, I think.
I like the sound of Graham James Kellen the best though

I think my problem is that Graham and James are both one syllable, so they don't sound right when I say them out loud. I'd like Graham Robert James the best, but if you want to keep it as Graham James, I'd say I like Graham James Kellen

I say Graham with two syllables (GREY-am), like Graeme. I think I really am loving Kellen recently, especially since it's the name of a character in a much beloved series I'm rereading.