Now as far as where/how to find them early, it's the same permawatchlist I always post: 

$SPY $TSLA $NFLX $NVDA $BA $BABA $SHOP $TTD $TWLO $FB $AAPL $AMD etc. 

Their OTM options do these retarded moves damn near every day/week. Especially $SPY since it expires 3 times a week.