A coworker is creating an app in Power Apps and needs to automatically synchronize data...

There are 250 + predefined connectors that you can use in your PowerApps and in your Microsoft Flows. If you do not find any that suits your needs you have the possibility to create a Custom Connector.

Note: A Custom Connector is a wrapper around a REST API (Logic Apps also supports SOAP APIs) that allows Logic Apps, Microsoft Flow, or PowerApps to communicate with that REST or SOAP API.