All are good, basic types of flies that can serve multiple duty. I tied them more for stream bass than anything, but caught many panfish & even trout on them when I had the opportunity.
Since saltwater flies have been mentioned, long before I had the chance to try fishing the salt with flies, I started tying such things as Key's style feather wing Tarpon flies. I've never fished for Tarpon, nor expect to ever try it. They're not difficult, and can be tied on hooks that are popular for bass flies, such as a Gamakatsu B10 or Tiemco 8089. I tie them on straight shank plastic worms hooks and add mono weed guards.
Anyway, I learned a lot tying them, such as how the feathers act when wet and used them as bass streamers, of course tied in sizes more suited to my old fiberglass 8 wt, and the bass, such as size 4 to 2/0. Just because a pattern is "intended" to be for saltwater use ( or any other use) doesn't mean it can't be used for other purposes & fish species.
I've said it before, I like experimenting and often have tied flies that are "designed" for fish species that I'll never fish for. Steelhead & some salmon patterns come to mind. Be open minded! I really like Intruders & Bombers for SM bass in streams! Although they're not "beginner" styles!
Flytire has also said it on here many times, use your imagination, experiment & try new things. It's great for beginners to take it slow & stick with established pattern recipes, but not necessary to limit the patterns that may be tried! Except of course, to the materials on hand!