Internet Security Suite for a small home network 20 PCs-Laptops or less

I am looking to purchase Internet securit suite software fr my home network (grandkids included) which will have a max of 20 PCs andlaptops with networked Printers/NAS units.

The network will need to support Online gaming, Photo work, music, as well as my work (Tech Support via VPN) and VM setups.

I have read so many “Reviews” and each appear to be done by the software manufactures associate company.

Any recommendations for this type of network would be appreaciated. With 6 grandkids there is a lot of coverage tomake sure they are SAFE, have fun, can research, but keep the systems as clean and safe as I can possibly make them.