In reply to LottiePorter:
We climbed at Brimham as some of our earliest outdoor climbing - be prepared for a bruised ego when you find out the grades you struggle at! Once you've got a bit of experience of things like jamming then everything becomes a lot easier.
A few suggestions:
Cracked Corner (as suggested above)
Cyclops (and adjacent routes)
Lichen Slab (could be a bit worrying to lead so find someone to follow)
President's Progress (perplexing start but safe)
Lover's Leap Chimney (steep polished start so maybe not ideal)
Difficult Crack (best done at the start of your climbing career when it lives up to its name and is all the better for it!)