Choosing the right lines for LRF can be quite tricky and depend a lot on the time of year or conditions you face. Generally though, we're talking about braids from #0.2 - #0.6 PE. Finer options for winter time and the lightest jigs up to the thicker stuff for summer metals.
Ben's an idiot so hasn't added a full category run-down yet. We're sure he'll get on it shortly.