As many players are choose Woodcutting in game. You need to choose different things when you at different levels. You can try this plan if you are member. Maybe you will find it is not hard to make Runescape Gold.
If your level (runescape money) has not get 50 you can try acheys. Because they can sell for 200 coins apiece. For chop near castle wars you will need 4054 chops before the level 50.
Then you can try chop maghony logs which can sell for about 350 coins apiece when you at level 50-58. Then change it to chop eculyptis logs which can sell for 400 coins apiece and chop near moblizing armys. 55 or higher combat is recommended and the higher the better in Runescape.
So you see chop yews for level60-90. You can get a dragon when you can afford it. Chop at the tree gnome stronghold. Magics aren't good unless you have 90 or higher woodcutting and a dragon hatchet, but sell for a whopping 1200-1550 coins apiece. Chop at tree gnome stronghold or mage training arena.