I signed up for the new streaming app Direct TV Now. Not sure if its still going, but it is $35 for 100 channels, and an extra $5 for HBO. So far so good. Had a few buffering issues, but they seem to have ironed it out. I use it on my FireTV box.
Had sling, this is way better in terms of amount of channels. Not sure if the promo price is still going on.