I just came across a mining site that offers 0.00000100 BTC/min by default with a minimum withdrawal of 0.005 BTC. This might sound like it's too good to be so I'm just going to leave this here for now. I'll update this post if it's legit or not.
You can sign up and check the details by visiting their site, click here Cubemine Site.
Also, let me know in the comment box. What's your experience with this site? Update here in the below comments, So other users also can know about this portal. I will keep sharing the best information and new sites in the future.