Best fast local WP firewall

Hello,

Please, suggest a best TOTALLY FREE firewall for WP.
(I’m not greedy, but now I’m out of money.)

I already test – “Wordfence” – but it too heavy and many options include blacklisted IP’s list are closed for paying. ??
Cloud based – “CleanTalk” – have a base logical security contradiction by sending all new users info to some other servers. ??
“All In One WP Security & Firewall” – looks a little childish, more like a one huge advertising block, what a little takes a distrust. ??

So, what WP anti-spam firewall you can recommend with follow possibilities:
+ Often refreshable blacklist IP’s list;
+ Some new users registration protection (reCAPTCHA, etc);
+ Auto blocking of too many users registrations or too many new posts or comments etc.
+ Some protection of files, ddos, brut, etc.
+ Easy, fast, effective.

???