If you ask nicely in the
The Official Fare Bucket Check Request Thread, friendly FTers will normally use EF to check fare class availability. R information is provided as part of that availability. But for the purpose of booking, an EF trial might suit you better.
Thanks Zappy, signed up for the trial and it looks like all kinds of good info. I'll sign up for the yearly pro version and put it on my phone.
A lot of the flights are already at R0 almost a year in advance. I guess people have already started to book for next Christmas.