Czech has just this evening announced a state of emergency which could well lead to a full lockdown in the next few days.
Right now I would stick to the UK and do some extensive research here and in the AW profiles. I have just cancelled a planned trip to Germany for next week as I am almost certain they will be introducing very strict additional Corona measure which could also lead to lockdown. there
When the current wave of infection is over, probably not until Spring, do consider Germany for your trip. You have a wide range of services available, from the FKK clubs, which are sensational, if a little pricy, to the Laufhaaeser, or street type brothels, which Splodge refers to.