You can always climb Countisbury, take the 1st lane on the right to Brendon and turn right over the medieval stone bridge to Rockford (good pub!). This will give you a bonus 25% climb out of Rockford and deliver you back to your original route. The views are magnificent.
It's in the second list I think. 110 https://cyclinguphill.com/100-climbs/countisbury-hill/