Adblocker is a big one, and pretty easy to use. The biggest problem is that it will break some websites for some people, but as long as you explain how to turn it off and when you might need to, they always seem to love it and it tangibly reduces the chances of being a victim to a scam or drive-by malware.
Brave browser
My brother had no idea what Brave was
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In the past, I used adblock or adblock plus, but nowadays they are too often detected by so many websites, as you wrote. Ublockorigin seems to be better alternative. (Moreover, it blocks all advertisements, unlike the adblock, where is possible for advertisers to bypass your filters with "non-intrusive" ads).
Ad brave browser is good option with privacy by default
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