For those many who don't want to learn to mess around with their wifi router, I suggest buying Google Wifi. It's a top quality router (actually made by one of the top manufacturers) with high-end features and managed remotely by Google (from "the cloud"). They will make sure the software is updated, router viruses and spyware eliminated, etc. I have the previous generation of it in my stick house and it performs extremely well.
https://www.amazon.com/Google-Wi-Fi-1-Pack-GA00157-US-Outlet/dp/B07FXY371L/
They like to sell the 3-pack to guarantee 100% coverage in large or multi-story houses, but the single unit works dandy for me and covers our entire place. Of course, it's a mere 1200 sq ft single floor home, so maybe not challenging, but previous routers didn't do it well, nor does the router supplied by my ISP (Spectrum/Brighthouse).