I'm working on a Node.js app, which'll be hosted on http://xervo.io -- formerly modulus.io
Not as over-engineered as Heroku for small projects, but you still get free LetsEncrypt SSL certs, auto-scaling (for us wishful thinkers), and an integrated/cheap MongoDB (which I haven't messed with). A small side-project runs $7.20/month. I had a good experience with them on a previous Meteor project, so I'm looking forward to using it again.
Not as over-engineered as Heroku for small projects, but you still get free LetsEncrypt SSL certs, auto-scaling (for us wishful thinkers), and an integrated/cheap MongoDB (which I haven't messed with). A small side-project runs $7.20/month. I had a good experience with them on a previous Meteor project, so I'm looking forward to using it again.