For my home router I use a UniFi gateway pro - probably overkill but it’s nice and works. For my office we initially used a UniFi gateway but while testing voip phones I found it was not adequate for voip traffic so I bought a $1k dell server configured it with linux and iptables for failover from our primary fios to our backup Comcast .... I think I would roll my own if you have time otherwise UniFi is great