Both of these dramas star young Johnny's idols. The dramas' leads are Arashi Members: Ninomiya Kazunari for Stand Up!! and Matsumoto Jun for Gokusen. Also, Oguri Shun and Narimiya Hiroki are in both supporting casts. They both center around high school life and troubled youth. It's really fun to see these actors' early works.
Ho Goos Love can be in some aspects related to Stand up. Both are great dramas that start as a comedies but end up being something much more than you have ever expected. From both you will learn that power of love and friendship can heal you from deep emotional scars. Stand Up is however about highschoolers while Ho Goos Love is about people in their 20s.