I love Edmund, Alfred & Vincent but…

[Nohj]

…I hate that the nicknames are so popular.
there are so many children called Teddy, Freddie, Alfie, even Vinnie, that I feel like even though the names I like aren’t common my son would get lost in the sea of them anyway.

Any name suggestions for me based on the style?

Edwin/Eddie/Ed

Names always get shortened at school which is why I chose one syllable names in the end

You need to go for short names, 1 syllable

John
Mark
Max
Seth
Saul
Hugh

or 2 syllables with less chance of nn
Percy
Oscar
Liam
Hugo

William
Alexander
Peter
Xavier
Anthony
Richard
Julian
Conrad
Daniel
Matthew
Christopher

Ned can be short for Edmund. Or would you rather not a shortening?

Douglas (Dougie)
Reginald (Reggie)
Stanley (Stan)
Arthur (Artie)
Herbert (Herbie)
Patrick (Paddy)
Richard (Richie)
Michael (Mikey)
Kenneth (Kenny)
Robert (Robbie)
Leonard (Lenny)
Kevin
Jasper
Philip.
Seth

Leonard
victor
august
chester
spencer
ernest
stanley
sidney
wilfred
ivor
douglas
eric
jasper
quentin
cedric
lawrence
walter

Do you want to avoid names with nicknames completely or just avoid names where the usual nicknames are also very popular?

You could look at:

Anton
Asa
Benedict
Calvin
Clement
Cyrus
Felix
Gabriel
George
Gideon
Guy
Harvey
Hugh
Hugo
Jasper
Julian
Lawrence
Lewis
Linus
Louis
Miles
Nathaniel
Nicholas
Otis
Percy
Philip
Reuben
Rufus
Rupert
Sidney
Silas
Timothy
Wilbur
Winston

Wyndham
Francis
Frederick
Joseph
Walter
Ernest
Uriah
Dale
Peter
John
David
Jeremy
Christian
Christopher
Stephen
Kurt
Oscar
Jesse
Michael
Warwick
Phillip
Cyril
Cedric
Richard
Robert
Laurence

Edmund is the only one I would use and I would call him Ed, Edo or Mundo.

Others ..
David - Dave
Willoughby - Will
Derek - Recka
Maxim - Max
Herbert - Herbie
Hector - Hec
Victor - Vic
Dougal - Doogie
Simon - Simo
Charles - Charley
Vernan - Vern
Augustus - Gus or Augie
Benjamin - Ben
Andrew - Banjo
Jordan - Jaws
Ian - Ian
Patrick - Paddy
Fergus - Fergie
Rourke - Rourke
Burke - Burke

All three of them are quite drab names and will wind up been shortened.

Arnold
Ernest
Victor
Ivor
Ivan
Laurence
Robert
Patrick
Silas
Giles
Linus
Daniel
Michael
Matthew
Justin
Corin
Angus

Edwin and Eddie instead of teddy

Edmund reminds me of the snake brother in The Lion, the witch and the wardrobe.

Just call Vincent, Vince as a nn rather than Vinnie?

Thank you for all the suggestions, we like Quentin and Francis.
His elder sister has a three syllable name - think Josephine. We intended to call her Josie, but have always called her the full name. We accept though it will get shortened in future and picked a name where we like the obvious nickname!

I love Christopher, like Kit but not Chris…

Surname is Lloyd.