I went with the unbranded version of the protectli hardware from aliexpress and then flashed it with coreboot and installed pfsense. It works flawlessly but was quite a learning experience moving from a crappy standard broadband router.
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
Can you please tell me which unbranded model you used and how did you get coreboot on it?