I just subscribed to Mountain Bike Action and Dirt Rag. I bought both from the newstand (yep… actual paper magazines) and liked them enough to subscribe to them (digitally). There’s also IMB, a free digital magazine. I should also mention MBR (Mountain Bike Rider). I haven’t subscribed to it (yet) but it’s produced in the UK and I’m not there. Not a big deal really, but if you’re in the same boat as me… a currency converter may come in handy, lol.
Hope that helps.