Whats the fastest way to do it. I'm botting coal at guild right now but it's failing hardcore. I am thinking of going members, to/when I get 77. Depending on if my account can survive in LRC. It's a 40 def acc.
Powermine Iron at Varrock East Mine or Al Kharid Mine for F2P.
When you turn members you can powermine Granite in the Kharidian desert.
Or you can keep doing Iron, Yanille mine would be good.
For F2P, iron. Dragon Pickaxe is very recommended for P2P as you can sell it back so you won't lose much GP. Also, I heard Granite is a very good way of leveling up.