Where in the North east are you based?
The new stuff at Hamsterley is good and should stay rideable all winter. It’s all on the red and Black routes, but once you’ve found the good stuff you can mix and match. The Hamsterley Trailblazers do guided rides one Sunday a month, or finding the group on Facebook should get you in touch with other riders (there’s an official Trailblazers group, and also a Hamsterley Riders group).
Swaledale has some great riding, with some fairly obvious bridleway loops, or have a chat to Stu at Dales Bike Centre and he can point you toward the best ones for the weather on the day. (Top tip: if it’s windy, use the valley bottom BW when heading upwind, then go downwind on the tops.)