There are a variety of ways to generate or farm OSRS Gold on Runescape. The best way is to just engage in the game to enjoy the activities that you choose to take on. One of the most well-known strategies are:

Flipping using the Grand Exchange - always one of the most profitable ways to play any mmorpg which has an international marketplace or exchange within the game. But, you must have Gold as your initial investment, as well as some knowledge to be able to make that happen.

Enchanting Sapphire Rings

Making Gold Rings

crafting (smelting Iron bars, cooking Trouts and probably a several other lucrative items)

The Gathering (cutting Oak Trees, lumberjacking generally is my top choice)

Tanning Dragon hides

There is more buy runescape gold cheap information and details in the guide here.