I'm not sure if this will help you at all, but this is how DH and I did it.
We each sat down with a piece of paper, and I wrote down all the names I liked, he did the same. Then we swapped our lists, crossed off the names we really couldn't stand, and put the remaining names onto one piece of paper. The names that had been crossed off, no matter how much we loved them, were not allowed to be mentioned again - they were gone, forgotten.
In a way, we're lucky we didn't have boys - between the two of us, the single boy name we could agree on was James (DH's middle name) - we had not ONE single name other than that, that both of us could live with. Girl's names were easier, but I've had to accept that my favourite names were just not going to happen on DH's watch - I love our Emily Paige and Hayley Nicole but am sad that I will never get to have my Alicia Reide or Katherine Elizabeth. DH just didn't like those names so we had to compromise.

I personally am not a fan of letting one parent choose the name with no input from the other parent. I think both parents AND the child need to be at least optimistic about the name, not stuck with their least favourite name for the next 18 years So with that in mind, both of you are butting heads over the naming dilemma because you both want a 'stake' in naming the child, when it should (imo, anyway) be a joint effort, just the way the baby was created That argument may be the sticking point that is preventing you both from working together on finding the name that is meant for this baby... let it go and see whether that helps you both more open to discussing names you may not have thought would work
Best of luck, I know you will find the right name I just hope it happens without stressing you both out too much! x