My recommendations currently for this sort of thing come down to two.: Amazon Lightsail https://amazonlightsail.com/ https://amazonlightsail.com/ Nearly Free

My recommendations currently for this sort of thing come down to two.: Amazon Lightsail https://amazonlightsail.com/ https://amazonlightsail.com/ Nearly Free Speech https://www.nearlyfreespeech.net/ https://www.nearlyfreespeech.net/ There's also the s3 / Route53 / AWS Lambda solution mentioned by "ryptophan" which is inexpensive but a bit more complex. There's also Google Cloud Platform https://cloud.google.com/products/ https://cloud.google.com/products/ which could, especially via https://console.cloud.google.com/launcher https://console.cloud.google.com/launcher give you for example click-to-launch phpList or LetsChat up through SuiteCRM or Mautic and on to Redis, Cassandra, or a whole OS. There's really more than one axis of "simple". Do you want to manage a single app? Do you want a simple way to launch a whole cluster of servers? Do you want a full OS VPS with a single app on it to start?