Ok, so using 'Custom VPS' in Forge, I setup a Lightsail instance. I got stuck because SSL wouldn't work. Since I pretty much suck at networking stuff, it took a while to figure this out. But if you use an SSL / HTTPS certificate, you need to go to the Lightsail instance and open port 443. This is very easy to do in Lightsail instance by going to the Networking tab and adding HTTPS port 443 to the Firewall section. Worked instantly, my site started responding to https.