https://topwaresale.com/product-category/active-sales/antivirus-security-software/ http://www.topsoftbargains.com/product-category/security/
There are some posted in this thread: https://www.wilderssecurity.com/threads/newegg-com-av-specials.361072/
https://www.dealarious.com/product-category/security/ https://www.anti-virus4u.com/ https://www.antivirussales.com/
if you use windows 10 https://www.wilderssecurity.com/threads/how-long-to-restore-win-10-with-reflect.395644/ you should stick with windows defender - any other is known to cause (annoying) culprits.
You can keep an eye on Slickdeals: https://slickdeals.net/newsearch.ph...mid[]=9&forumid[]=25&forumid[]=54&forumid[]=4
