The last couple of months I've started doing leg press with a very high foot position (your ankle should be just below the line of your knee) for hamstrings.
Key is rather than rep it out, to pause at the bottom and push, concentrating on pushing with the bottom of your glutes, which will actually mean you're using your hamstrings, I find I have to keep my finger there to make sure I'm properly engaging it. My hammys are absolutely fried after it, then doing the rest of your hamstring workout after is a bonus