If anyone is thinking about an organised group UK Cycle Tour post lockdown, probably post vaccine, in the late Spring or Summer, remember to look at the CTC Tours website:-
All breaks are run by volunteer tour managers (including myself).I have a few weekend breaks and longer trips,starting near London, particularly aimed at cyclists who enjoy longer rides, with greater amounts of ascent and descent. Could be good training for sportives also.
https://www.cyclingholidays.org/