Also check out Mortimer Forest near Ludlow (about 10 miles away so rideable). You’ve got the forest on one side of the road and a load of riding in Bringewood as well on the other side of the road. Closer to Leominster there’s Bircher Common but it’s a bit fiddly to find routes if you don’t fancy a good long look at the maps.
You’re as far from Rhayader and some of the best classic riding in the country as you are from the Long Mynd. Long Mynd is pretty good too tho but it’s more a collection of superb descents and steep climbs strung together than all day epic stuff.
I also grew up in Leominster 🙂