Hi @Fransua welcome in the plugincafe community.
Do not worry since it's your first post but please read and follow these rules (I've setup your post correctly)
How to Post Questions especially the tagging part.
Q&A New Functionality.
Unfortunately, a complete list is not available for the moment. But if you are looking only for object there is this page Object Types and Fields Object Types which refer to all symbols available to describe an object.
To know a specific object id, you can drag and drop this object/element to the console, for more information see Python Console, Scene Elements.
Finally, you can also retrieve for the full list of id by their type with c4d.plugins.FilterPluginList
Cheers,
Maxime.