What antivirus should I use?
That’s really up to you. It’s not a static solution, as there’s always analogous evolution. Just because something works now doesn’t mean it will work forever.
I may give advice, based on my experience, but I believe it is the user who can best determine what they want and need. I cannot guarantee any antivirus is perfect. I may have my favorites, but I also know if I don’t watch them, they may become less effective as their management makes silly decisions etc.
The best antivirus is an aware mind, and good user habits.