The brookies aren’t likely to be too picky. You’ll need something that can cast well so don’t go too light. I recommend spoons 3/16 oz for lakes like those. They are small, but cast well at that weight. For lures at that weight I’d go with Kamlooper Jr or Daredevil spoons. Red/white or some combination of orange, red, and/or black on brass would be my recommendation. It wouldn’t hurt to throw a 1/4 oz spoon in just in case the fish are deep and you need to let it sink (as is often the case with brookies) but in a lake where they are stunted pretty much anything is likely to work.
Use 4-lb test mono for line and you should be good to go.