Virtual Private Networks, and password managers are good tools for Internet security. VPNs can tunnel you and keep websites from tracking you, and if you have issues with certain websites. Normally good if you’re on the go, because you never know if someone bugged the public Wi-Fi hotspot.
Password managers store your passwords in a heavily encrypted vault, and can even auto fill very difficult to crack passwords automatically. So all you need to do is remember the password to the password manager, and it does the rest.
Multi factor authentication is good, but be sure to 2 factor your email that you use for 2fa anywhere else. My dad just lost his email and Facebook because they got into his email through his Facebook account and there wasn’t 2 factor on his email account.
If you use Google’s Gmail, and have a cellphone, an authenticator app is a great to have. Websites that use that kind of security, ask for a 6 digit number that the authenticator app creates, that changes every 30 seconds. Then you can lock your phone using a form of biometrics (fingerprint, Iris scan, face unlock, etc).
It sounds complicated but these days it streamlines pretty well, and became de facto for my every day life.
And my final line of defense, oddly enough is a Norton product as they bought them out, is LifeLock Identity protection. It’s a service that monitors for suspicious activity that might be signs of identity theft, and if your identity is stolen, they will spend up to a million dollars to help you get your identity back and secure it. I got this back in 2009 when I started truck driving because my debit card was being used all over the place so I wanted to be sure that if I got skimmed, I’d be able to recover. But it works online too.
Also you can put your email in https://haveibeenpwned.com/ and see what sites your email is on that might have been breeched, and go change those passwords. It can’t help with the large dumps, but for individually reported sites, it’s useful.
I know this is a lot to take in, but I like that you’re taking your security seriously, but that also means you can get into a rabbit hole of paying for things you don’t need to, when everything you need to secure yourself is available! 