Angels (3 games), A's (4 games), and Cardinals (3 games). If they can manage to win each series (which would be at least 6-4 or 7-3 in the next 10), then I expect they'll be back in it down the stretch.
If they can't, they'd probably have to sweep Houston in their series down the stretch to have a chance, which is a Lloyd Christmas chance at that point.
The good news is they probably have the tie breaker against Houston for the division (though not against Minnesota for the wild card so it's probably division or bust).