My Wordfence Settings for most sites USA only.
I have found Wordfence the single most important plugin for WordPress. Below are several images of my current configurations. I use this on 20 websites, and it works well. The ip blocker use to be big for me, but now I use IP Blockers for hosting accounts. This stops the spammers and hackers for all my site. I use Wordfence scanner to find the bad boys to enter in the IP blockers on hosting. I use premium for paid sites.