When I used to bet in Europe ( East Europe) we had those betting shops, where you can place a bet similar to a parlay,but you can lose a leg in that same parlay and still win.
It's something like out of 5 games you bet in that parlay you have to win 4 for a payout and can lose 1.
or 2 out 3,3 out of 4.
Any sites that have something similar ?