Best members or non members areas to autofight a pure?

I know the basic thing for mems is going to be experiments or rock crabs but they are really crowded.

Name your fav spots for non mems and mems please

 

Flesh crawlers are good, and decent money, zammy monks, slayer is always good, it's a bit harder on a pure but still pretty easy.

 

Experiments is what I do. It is not crowded for me usually, and I manage ~35k/hour on average. Just try different worlds.