Hi @rsantiago1 ...
This thread, LTI consumer key and shared secret., does a pretty good job of explaining what a Consumer Key and a Shared Secret are. (I guess you could kind of think of them like a Username and Password.) Most external app LTIs that integrate with Canvas have some sort of cost associated with them, and the Consumer Key/Shared Secret is not given out until you pay for the product. Many of the LTIs available are installed at the Canvas account level rather than the course level...so that all courses in your school's Canvas environment can have access to it. Here's a list of what is available: Edu Apps.
I hope this will be of help to you, Rich. Let Community members know if you have any other questions about this information. Take care...stay safe...be well.
