Non member money makeing

I am a lvl 49 runescape non member and i know ways to make money here are the top 5 monsters to kiill in my opinian
1.Dark wizards are good to kill for low lvl players because they tell talismins and a lot of runes and are close to the grand exchange
2. lesser demons have good drops like rune helm but takes like 8 hours to get 1 a lot
3. greater demons have rare rune drops but are far in wildy so you cant teleport back to varrock.
4. hill giants drop big bones which sell for 400gp each and close to grand exchange.
5.this is number five dragons because it is members but kill dragons for good money.

Please dont ask me how i know this