The $100 router has a built in VPN?
If my DIY gigabit VPN guide is too expensive and complicated for your tastes https://blog.lopp.net/how-to-protect-your-home-network-with-a-gigabit-vpn/
Then check out this new $100 router that should be able to achieve 500 Mbps: https://www.gl-inet.com/products/gl-ax1800/
Discussion
It has a built in VPN client and server. Client for you to connect your home to a VPN provider or your on VPS. Server for you to connect your mobile devices to your home when you are traveling.