Good first names for middle name Ragnar?

We are expecting yet another little boy, and we are thrilled. But anyone else feel anxiety on naming them? 🤭 I feel like my first boy name is so perfect, I’ll never find another one I’ll like as much and is so unfair to this new baby 💔. Our first boy is named Marcus Björn, and we loved this little tradition of having a viking/old norse name as a middle name, so we really love Ragnar for it. But cannot think of a first name match for it. Any suggestions?