You've got quite a choice with flying schools at the following airfields all within a reasonable range.
Netherthorpe
Sandtoft
Doncaster Sheffield Robin Hood
Gamston
With Netherthorpe being the closest, you'll be in safe hands with the instructors and if you intend to go further it would probably be a good start going somewhere local and then seeing how you get on.
Doncaster Sheffield would give you the big jets experience (or more likely no big jets, just a vast expanse of concrete as they seem to be very quiet these days).
Sandtoft is a very friendly and active airfield, so you can easily absorb the aviation atmosphere whilst waiting to fly.
Gamston, a little more corporate, but a friendly airfield nethertheless.