User blog comment:SecretSynergy/Goku's Forms/@comment-30454279-20170613161335

I think you might be forgetting these ones, basically side-transformations. Here:

1. Ginyu's Body

2. Spirit Bomb SSJ

3. SSJ 2nd Grade

4. SSJ 3rd Grade

5. SSJ Power

6. Super Kaio-ken

7. Saiyan Beyond God

As said...Most of these are side-transformations that are equivalent to one of his more prominent ones. But they are all confirmed I believe.