Yeah, the good ol' Flesh Fly. Egg sucking leeches in black & purple, wooley boogers, and lots of others.
What species of salmon will be in the river when you're there? That dictates which patterns you'll want for salmon.
Places I have fished I have taken grayling on standard caddis patterns, Royal Wulffs, Adams, stimulators, and others. I love fishing deer hair mice for rainbows. What fun when the fish makes a huge wake across the stream then blows up on it! Standard muddlers, marabou muddlers, and bunny leeches for rainbows, too.