Middle name for a rainbow baby boy

Looking for some inspiration please. My husband and I prefer traditional names and have William, Samuel, Oliver, Benjamin on our shortlist for first names. This baby is our second after our daughter, Sarah was stillborn. I’ve felt the whole way through that they are really connected, their due dates are 5 days apart and we found out I was pregnant again on the day we collected her ashes which was so bittersweet. I’ve been thinking more and more about having a middle name with some kind of meaning like ‘light’, ‘blessing’, ‘gift’ etc but want it to fit with a traditional first name. We’re not religious but have no problem with religious names 😊 Any suggestions appreciated!