For a starting outfit, a six weight and floating line give control over small estuary flies. An intermediate helps when the current or depth lifts a lightly weighted fly above the bottom. Use a leader that balances a quiet delivery with resistance to the cover.
Carry a small shrimp, a lightly weighted crab and a slim baitfish pattern. Begin with short movements and pauses. Let the fly spend time in the useful patch instead of stripping it rapidly back to the rod.
When you can see a fish, lead it and watch the response. When you cannot, repeat casts with controlled changes to sink time. This turns blind fishing into a deliberate search for the depth and pace that work.