We wrote 3 guides on just that:

http://monitorbacklinks.com/blog/seo/recovering-from-google-penguin-penalty/
https://blog.monitorbacklinks.com/seo/recover-google-penguin-penalty/
http://monitorbacklinks.com/blog/seo/what-backlinks-should-you-disavow/

Updated on: 22 / 08 / 2019