Flyfisher117-- you've gotten great advice from the guys--
Here's a link to one of Charlie Craven's step by steps for a killer streamer pattern called Barr's Slumpbuster.
Charlie's FlyBox - Colorado's Best FlyShop and online Fly Tying Tutorials
It's tied similar to a Zonker, but instead of rabbit it uses strips of pine squirrel, allowing you to tie it on smaller size hooks than you'd use with rabbit.
I tie them mostly on size 8 hooks using a Mustad 9674 size 8 (less expensive than Tiemco if you're on a tight budget) or whatever hooks you use for buggers if you have some laying around.
Cone: gold or copper size " Extra Small " or " 5/32" " (to fit most size 4-8 hooks).
Non toxic "lead" wire for weight .025" diameter (or thereabouts-- ideally it should be about same diameter as hook shank)
Rib: "Brassie" size wire
Body: Gold or copper body braid or diamond braid, color to match bead
Pine Squirrel natural or olive
There's also a bunch of dry flies you could tie that don't use expensive dry fly hackle.
Some use short fine deer hair sold as "comparadun hair" or "coastal deer hair" for wings that also provide flotation:
X Caddis (for caddis): Charlie's FlyBox - Colorado's Best FlyShop and online Fly Tying Tutorials
Sparkle Dun (for mayflies) Charlie's FlyBox - Colorado's Best FlyShop and online Fly Tying Tutorials
By varying hook size, dubbing color and wing shade ( bleached light medium and dark grayish brown) you can imitate pretty much any caddis or mayfly you come across. These patterns are particularly good in slow to medium fast water.
Another similar and older pattern (that the above patterns evolved from) is called the Haystack, and it's a good pattern for rougher faster water. The Haystack was invented by Fran Betters for the Ausable in NY
Haystack: The Haystack: One of our Favorite Smoky Mountain Trout Flies | R and R Fly Fishing
Fran also invented another great fast water fly called "The Usual" that uses the fur from a snowshoe hare's foot for flotation. Super easy to tie, floats like a cork, and very effective.
The Usual: How to tie: The Usual, Fly Pattern, Nymphs, Tying Instruction, Recipe, Fly Fishing