Integration Database
The fundamental goal of this list is to show you, as end users or developers, how much effort you could probably imagine from an integration. The traffic light indicates the different approaches you have within the integrations. A red bubble does not mean there is absolutely nothing to work with, and a green bubble could potentially mean that an implementation is easy but still needs custom code. It is possible that there are also multiple ways of integrating, so I encourage you to click into it and check out the description.
Please notice that this list is not a complete list of all integrations or plugins. There is also the Magnolia Marketplace, which focuses more on officially supported modules and installable modules. The list down below should focus on the question of what is possible and should give you hints how to integrate it with the features out of the box.
If you have more questions besides these lists, you can always create your own custom integration.