Due to the sheer volume there isn't a single guide. However, if I were you I'd start off with the Climbers Club Guides to West Cornwall: Bosigran and the North Coast as that has a whole lot of goodness at exactly the kind of grades you're looking for. There's a review I wrote for it here https://www.ukclimbing.com/gear/reviews/guidebooks/climbers'_club_guide_to_....
The second in the series - West Cornwall: Chair Ladder and the Lizard - has come out quite recently and is also worth buying once you've ticked all the routes in the other guide
News BMC Publishes New GB Climbing Performance Department Proposals
The British Mountaineering Council has published a series of papers outlining new proposals for the oversight of GB Climbing, following management issues related to the internal business unit last year and a member-led proposal to...