After growing up mainly in Leeds / Bradford and now living in the midlands for the last 16 years, please don’t drive down to Ashby for the Hicks Lodge trail.
It fits the brief but is duller than a dull thing in comparison to the wonderful places you have in West Yorkshire. For a very easy ride, a trip down the leeds/Liverpool canal is (used to be) a pleasant day out. We used to criss cross it in between Esholt to Skipton with some great riding either side.
Might have changed massively in the 20 years since I last did it, but it can’t be as boring as Hicks Lodge (which isn’t a bad place to see really, but I’m 15 minutes away tops)
Sherwood is ok for a beginner as said, as probably is a simple ride around the perimeter of Ladybower.
Plenty in and around Leeds / Calderdale though.