There are many variations of these basic turnarounds. These tutorials have a variety of the most widely used blues turnarounds.
Blues Orchestration 1
https://www.guitartricks.com/tutorial.php?input=151
Blues Orchestration 2
https://www.guitartricks.com/tutorial.php?input=274
This lesson is an example of the most basic lead line blues turnaround (example in A major).
https://www.guitartricks.com/lesson.php?input=9948&s_id=217
There are also stereotypical jazz style turnarounds! I devoted this whole to tutorial to that concept.
https://www.guitartricks.com/tutorial.php?input=2148
Hope that helps! Please ask more if necessary & best of success with those turnarounds!
