I'm horrible at timing but my bias is long.
I sold 5 $32 Calls expiring 2/21/20
I sold 10 $26 puts expiring 2/21/20
I collect $270 for doing this and I'm using $3,500 to keep the position open. I'll likely adjust the position if GDX closes above $31, below $26.50, or if I can buy all back for $100 or so before 2/07/20. I sold these on 1/8. Collecting $170 in a month on $3500 is a decent return. The risk, of course, is a large move either way which will eventually happen. It's important to adjust correctly if/when that happens.
*I think biggest risk for large move is to upside so I only sold half of the amount of calls.