#### Managed 1. **Amazon RDS (Relational Database Service):** A managed service that makes it easy to set up, operate, and scale a relational database in the cloud, supporting several database engines. 2. **Google Cloud SQL: **A fully-managed cloud service that allows you to set up, maintain, manage, and administer your relational databases on Google Cloud Platform. 3. **Azure SQL Database:** A fully managed and intelligent relational database service built for the cloud and provided by Microsoft on Azure. 4. **MongoDB Atlas:** A global cloud database service for modern applications, providing automated handling of MongoDB infrastructure, setup, and administration tasks. 5. **[Neon](https://neon.tech):** a serverless, fault-tolerant, and branchable version of PostgreSQL. It's designed to be a fully managed multi-cloud Postgres solution with a generous free tier. It also scales automatically. Powers Vercel's (PaaS) new database.