Just a few suggestions...
Streamers (Black Nosed Dace is a good one), dragonly/damselfly nymphs, leeches, mosquitos, chironomids, some terrestrials like ants, hoppers, and bees. For specific techniques for each, Google is you friend.
Edit: I forgot Caddisflies
https://www.google.ca/search?q=caddi...16PQBw#imgrc=_