Bad Camberg is on every 4 years so the next one is 2023. Hessisch Oldendorf is on every 4 years also and the next one is 2021. Both are excellent shows and worth going to. European Bug In is on every two years. It's on this weekend and will be on in 2021 when Hessisch is on again in 2021 so worth doing both together if the dates match up, which they usually do.