dragonfly or damselfly nymphs for the lakes.
My go to is always a copper John or my favorite the Christmas tree fly for those mountain streams.
I couldn't tell you how many different species will hit a Christmas tree.

What kind of fly fishing are you trying to do?
I have a single hand 9' 5wt reddington crosswater that goes just about everywhere with me. Great rod that won't break the bank. Handles bluegill to steelhead no problem.

One thing with fly fishing is you need an array of different bugs,sizes and colors.
Sink tips, floating lines, to compensate for water conditions.
There is no better feeling hooking a fish on a fly, except swinging up a fish on a spoon of course.

If you can't get ahold of a fly rod take a handful of rooster tails or kastmasters.
You can never go wrong with those. Rainbow trout pattern with the gold blade is money.