If you are searching for good places to train skills on runescape, this article can give you many good suggestions on where to train skills on runescape.
For cooking, the cooking guild has all of the supplies to make wine. Fly fishing near Barbarian village is quick exp. The willows near Draynor are good exp.
For mining and smithing, you can mine 100's of iron, then smelt and smith it.
As for fighting, just go on a killing rampage on high level, but easy to kill monsters.
You can range and mage the locked demon in the wizard tower.
Firemaking you don't have a choice. There is bone respawns in the chaos temple in the wild.
If you master this tip, you can earn a lot from Runescape accounts selling.