I'm not sure if this has been mentiond before but whilst in Gosh Comics! I noticed that they had a copy of Rick Random: Fleetway Picture Library Classics. Probably best remembered here as the page filler in the early annuals. Even though not released by Rebellion it still has the Treasury of British Comics logo on the back cover
https://www.amazon.co.uk/Rick-Random-Fleetway-Picture-Classics/dp/1913548066/ref=sr_1_1?dchild=1&keywords=rick