anyone help me please? i've been doing d wc axes, buying 2.5m, selling 2.55m-2.6m but it's so hard to keep up with this. what items are good to buy+sell?

I used to find Ranarr seeds and Ranarr weeds quite good.

Herbs, D-bones, D-hides, Seeds, Runes, Potions, and various armour/weps.

Not sure what it's like nowadays but lobs and yews/mages were good.

Back in my day I merchanted Veracs Flails. There was a high demand for them, they were easy to get off the forums, and sometimes you'd get a desperate customer or seller that would go way above/below the price. So... yea. Check those out on the forums before you start, not sure if they're any good anymore.