https://cycle.travel/map/journey/235061 Brtistol - Llanthony Priory
https://cycle.travel/map/journey/235156 Ludlow
https://cycle.travel/map/journey/235200 Crew Green
https://cycle.travel/map/journey/235202 Llangollen
https://cycle.travel/map/journey/200560 Chester
https://cycle.travel/map/journey/200857 Southport
Highlights were the Black Mountains, the aquedct at Pontcycyllte (apart form trying to pronounce it as a non-Welsh speaker!) and the Mersey ferry. The route was also in part dictated by campsite loacations. There was a nasty bit of rain between Llangollen and Chester but it might have moved by now
Hope that gives you some ideas.