Hi @SatiricWalk3153.
Microsoft supplies a firewall and an antivirus software suite called Windows Defender. Both ship with Windows 10 home and pro, are free and receive constant updates. They should be on by default with your new system, but it is worth double-checking. I have been using the combination for years and never had any problem.
I generally recommend staying away from payware alternatives because they slow the system down, often spew adds asking for you to buy subscriptions or additional products, and they are bloated with other features that are either redundant or not needed.
However, I’m sure others will disagree with that, so you should be able to get some advice on third party options below 