At home we use AVAST Free anti-virus. It offers very good protection, and it comes with their own Avast Secure internet browser. The browser is a customized version of Google's Chrome browser, and it's designed to protect you from dangerous / fake / malware websites. If it blocks a file, or an app, or a bad website it gives you a "Ding! - we stopped this dangerous thing from harming your computer" message. Additional features are, as usual, available if you're willing to pay for them. We've had the free version for about 8 years and our several computers have never been infected or hacked. Overall, the free version of AVAST is well woth considering.
What we don't like: AVAST gives you pop-up messages almost every day saying you have many vulnerabilities and you should "Resolve all" by buying their premium protection. The pop-up message is in the bottom right corner of your screen so it doesn't prevent you from continuing to work. Some of these pop-ups disappear after about 15 seconds, but some stay until you click to close them. Anyway, a few years ago they offered the premium version at an attractive price for a 1-year subscription. We bought it in the hope that the nagging pop-ups would cease. We were wrong. New pop-ups advertising even more features (super-premium version?) began to appear after a couple of days. After 1 year we reverted to the free version, no problem. They sent a survey to ask why we didn't renew, Lol.
Windows Defender is included in Wiondows 10 (and 11 I assume). I've been using it for a couple of years on my personal laptop which I use all day long. I've had zero problems. It seems to be good, unobtrusive protection. Are you sure you want to move away from Defender?