Below is a round-up of the birth announcements from British newspapers. Sources include a national paper (The Telegraph, The Times) and a broad range of local newspapers from across England, Wales, Scotland and Northern Ireland.
Sibling names are in brackets. No official surnames are included; any name ending in a surname is actually a middle name.
Boys:
Alexander Endeavour (Athena)
Arthur Rupert Roland (Louella Poppy Honora)
Bihaan Leonard
Dylan Peter (Violet)
Eddie (Charlie Michael David)
Inigo Charles Patrick (Sienna Frances Sybil & Elora Isabella Edna)
Inigo Geoffrey Hilton (Magnus Oliver Carwardine & Joseph Ynyr Harlakenden)
Isidore Benedict Tryan Elias (Persephone, Rafael, Augustus & Balthazar)
Ivo Mungo Jack
Jack Michael Bauer (Mia)
James Anthony (Oliver Joseph)
Jude
Laurence Richard (Milo Geoffrey)
Maximilian Timothy Peter (Beatrice)
Nathan James (Charlotte)
Oliver Mathew
Otis Alexander
Reuben William (Rudy James Paul)
Girls:
Alexandra Faith Bethell
Lorelei Evelyn
Margot Ruth
Martha Grace Daisy
Ruby Rowan (George Arthur John)
Sophie Nina Audrey
I cross-reference older BAs to find the full names of the siblings, however often they are missing (especially the eldest siblings, or for half-siblings) which explains why you will sometimes see something like: George Henry (Lucy, Emma & Jack Arthur). "Lucy" and "Emma" may well have middle names as well; I simply cannot find them online.