My suggestion is that if you like Norton, you could stick with it, but if you're asking, you may have noticed something that bugs you... I have an issue with Norton because it's a resource hog, but that's me. If you're looking for something free, I would suggest Avast (just make sure to go into settings and turn sounds off or you will get a surprise later). Also, Avara is decent, I use it on a computer to test out how it works and haven't really gotten to taking it off. If you're looking for a paid anti-virus, I would look into either bitdefender or Kasperskys. Without knowing what it is about Norton that is bothering you at this point, it's hard to give a definitive answer, but this way you have some choices to look into.
Also, I would suggest Malwarebytes to go with any free antivirus as they update with non-virus malicious software faster. And get adblock plus if you haven't already for your browser to help with the clickbait crap.