Although VIX finished the week above the low volatility environment zone (<15) at 16.48, not much is enticing here from a premium selling standpoint at first glance. Earnings announcements are now down to a trickle, with the next quarter's announcements coming into range in the May cycle, militating in favor of putting on earnings-related volatility contraction plays closer to announcement since implied will in all likelihood expand running into them.
ASHR (50/29), GDXJ (44/27), GDX (35/24), TLT (36/10), XLB (33/19) round out the top five exchange-traded funds sorted by rank; EWZ (12/38), XOP (26/32), OIH (27/32), ASHR (50/29), and USO (14/28) when sorted by 30-day implied, all below the >50/35 metrics I like to see out of these to put plays on, although I will continue to sell a bit of XOP premium here, since it's 30-day implied is nearly twice that of SPY's at the moment: the May 17th 30 short straddle's paying 2.99 (.75 at 25% max), nearly 10% of the Friday close share price of 30.06.
On the majors end of the stick: SPY (28/16), QQQ (23/20), DIA (22/17), and IWM (19/21) -- all at the low end of their 52-week volatility ranges.