You may have created a Course manually or via AI and you really want it to be viewed as a resource and do not require members to enrol.
You can easily convert from within the course settings
Steps
As admin go to the course
On the action panel, select Convert to Resource
Then, on the slide out panel select the button Convert
The course will now be a resource. Once published members will find it in the library.
If you are unsure, or wish to preserve the Course, make a copy before converting.