Rails + Postgres + Heroku. I may be living a decade in the past, but all the bugs are worked out and the development speed is extremely good.

Python + Django on AWS Beanstalk backed by Postgres on RDS.

Django REST Framework provides pretty much everything you need for a REST api.

Golang with Postgres. Love the simplicity and power of Go along with a binary executable.

Where my node folks at?

Node + Express + Nginx + Pgsql on Elastic Beanstalk.

Elixir + Phoenix + Postgres + Heroku

API gateway + Lambda functions (in Python) + DynamoDB if I need to store data.

Pricing is completely linear with usage (and very low/free for low traffic) and I don’t have to worry about uptime or scalability.

cakePHP on EC2 + postgres on RDS is nice. toss in some Redis caching and feed it traffic from a load balancer. you can get a lot done with very little effort.

Java, Jersey & Hibernate

.NET Core + Web API

Postgres

Nginx

Digital Ocean

Drupal 8