zdnet[.]com/article/how-to-secure-your-home-and-office-network-the-best-dns-blockers-and-firewalls/
Per the article it's either not easy or it's easy & not cheap...
Escalating international tensions -- coupled with an ever-increasing number of professionals working remotely -- are driving the need for small-scale solutions and best practices to secure home- and small-business networks and mobile devices from malware, malvertising, and other threats.What follows is a brief guide -- with product recommendations and best practices -- for those of you looking to navigate the rapidly evolving cybersecurity landscape. If you have limited network security experience but want to provide additional security for yourself, your small business, or your friends and family, this guide is for you.