A huge amount of monsters drop rune scimitars in runescape, the most popular one being Cockroach Soldiers (for free players)
For members, most rune scimitars are obtained from zamorak warriors and fire giants, or even metal dragons!
Waterfiends.
Black dragons is the best!
A good low leveled monster that drops good items in runescape is chaos druids. Because they drop lots of herbs like Rannar which is a lot of gold pieces but you need to be a member to access them.
Almost every Monster Drops Gold Charms but you can receive multiple charms from the level 111 Giant Rock Crab in the Chaos Tunnels.
Just about every monster drops some kind of charm, but try this link it will tell you what drops charms and how much at time and the drop rate of them. just scroll down a bit and it should be there.
You get charms by monster drops.
the grand exchange on runescape
Runescape is for nerds
It can reset your drop rate, making you get worser drops.
As of today, there are no known places that offer Runescape Gold for free. However Runescape Gold can be purchased cheap at websites, RSgoldfast and Playkiller.
the last boss ofc
Do NOT real-world trade, as you will get banned. Earn RuneScape gold yourself.