I don’t see any content types

Content types have to be shared with you in order for you to use them.

Content types can be created by anyone who has a content administrator role. After the type is created, it must be shared with others in order for them to use it. If you expect to see a content type but don’t see it in the list when you try to create a content item, contact the person who created the type to make sure that it was shared.