This depends on where you are as you’ll get the best speeds for Hulu when you connect to a VPN server as close to your physical location as possible. Many VPNs on the list can automatically find the best location for Hulu for you as long as you tap on the US as your selected country.
To check how fast your connection is, ExpressVPN comes with a built-in speed test. This allows you to run checks from the VPN app and get almost instant results. I found ExpressVPN always connected me to the fastest server, so I didn’t have to worry about manually reconnecting.
You can test ExpressVPN's servers for Hulu risk-free as it’s backed by a 30-day money-back guarantee. That way you can get a refund if you’re not happy with its server speeds.