If you're talkin' small stream, as in brook trout fishing, I use a royal wulff or elk hair caddis almost exclusively, and lately I've been dropping a soft hackle PT.
Honestly, once they start looking up, no need to drop anything. Try putting on two EHC hahaha! I drop the soft hackle just for fun, and its fun to see how many will take it compared to how many slam the dry.
In the winter, a big stimy w/ a green weenie or san juan worm works, but not as well as buggers. The only time I drop on small streams is when we're transitioning from cold winter water temps into warmer spring temps. That weird limbo stage where the water MIGHT be warm enough for the brookies to start rising, but they aren't coming up consistently yet.