Too Long; Didn't Read
Heroku has been taking it on the chin lately for its response to what looks to be a pretty-damn-serious security incident. Here are some alternatives to Heroku's Platform-as-a-Service Solution(PaaS) — Fly.io is a Docker-driven solution with an *incredibly* generous free tier. Render.io offers all the bells and whistles that we've come to expect in PaaS platforms such as autoscaling, Docker deployments and cron support, meanwhile, Porter is an open-source managed cloud solution.