Use case: Virtual Private Network

I’m looking to draft the first extended treatment of a “use case” for FreedomBox vis-a-vis its capability to deliver VPN-related services. I’d welcome recommendations for technically-sound accounts (text and AV formats) that could be understood and appreciated by a relatively naive audience, e.g. I’m thinking along the lines of this overview from the EFF. I’d also welcome recommendations for similar accounts of OpenVPN and WireGuard specically that might assist members of our audience to appreciate their respective capabilities and (perhaps) to choose between them. Thanks.