well i just got lvl 38 herblore and i'm killing chaos warriors for herbs. but i was wondering what is the best monster for getting rannar? cause this is taking awhile and its fun and all but if there is a monster that drops higher herbs could someone tell me what it is?

Personally, I think you're at the best one, simply cause you can kill them so quickly and they drop herbs like 75% of the time.

Any monster that drops unids drop random ones, so men are just as likely to drop a ranarr based on the percentage of other herbs than chaos druid warriors will, just the warriors drop them more often. So I think right now you are at the best possible place, since it matter more how many UNIDS, and you might think that some other monsters drop ranarrs more often, but that is just sheer luck. So you are in the right place. :)

i would say chaos druids in edgvilel dungen are great beacuse u can kill the occasional noob and drudis drop them 80% of the time and u get water vials which u can mix with herbs to save inv space

Imo, cave crawlers are better. If you have done that fairy ring quest they're also quicker to bank. Else just stick with chaos druids at Yanille though.