Redundant cloud servers routing traffic to home :) You can do a significant amount of filtering and load balancing at layer 4. Shared servers, given enough bandwidth, on modern VPS have more than enough left over resources to do deeper inspection and filtering.

Can you tell your cloud provider that you refuse to pay for anything more than a 500Mbps connection to your VPN server? That way they accidentally protect you from DOSing your home connection. You don't happen to live close enough to pop over to talk shop at some point? Probably not I am stuck in MN where the only other nostrite sells jerky.