author in writing's list "Middle Names (besides Rose and William)" of 10 great name ideas: Olwyn - Yule!

Middle Names (besides Rose and William)

Olwyn is a popular Welsh name that might be an alternative to the more familiar Bronwen or Rhonwen -- though in Wales the female form is usually spelled -wen and the male one -wyn.

Olwyn

This name of the mortal girl loved by Eros is too loaded with psyche/psycho/psychic associations.   The mythological Psyche became goddess of the soul.

Psyche

Tieran

Pronounced like Tom, but not everyone will know that. 

Thom

Tireney

Thames

Vidia

Winthrop

Brisk, preppy York is an underused classic with the potential to really shine in the 21st century. It's most familiar as a place name — York is a city in England — and surname. New York City and State were named after the Duke of York.
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The most notable York in history was an enslaved man who was the only Black member of Lewis and Clark's expedition. York was a key member of the journey, skilled in hunting, medicine, and other survival skills. He was also invaluable in Native American diplomacy. At the end of the expedition, Clark denied York's freedom and instead sold him black into slavery.
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Despite the sad ending to York's story, he is an American hero with a name worthy of consideration.

York

Yule is one <a href="https://nameberry.com/list/412/christmas-baby-names">Christmas baby name</a> that doesn't sound very festive.  We prefer Winter or even Christmas itself.