IAD and IAH to FRA pretty much always clears - especially on 787-10 from IAD
BRU flights clear easily
My last 3-4 flights have all been "skip the waitlist" - You just have to be 30 days out when you book
Inter EU flights eat PP like candy -
BCN-ZRH via FRA, FRA-BRU etc 40pp a pop and you can burn thru them