Could even potentially just have everyone choose their own two selections?
With choosing the PL games we're always likely to end up with one or two that you'd steer well clear of if you were choosing yourself. That West Ham/Newcastle one was a fucker, Southampton/Everton the same. La Liga is so tight from 4th down too. Maybe just try 'any result in the top four leagues plus Spain, Germany, Italy and France' and see how we get on.