Look into the growth factor shoulder training article - lot’s of super-set stuff there.
I do the different raise variations just holding weight plates of different sizes.
For press variations you can rock:
Behind the neck press
Snatch grip BTN press
Push BTN and SGBTN press
Scrape the rack press
1 arm viking press
Lot’s to choose from here, see what works for you! What kind of plates do you have? Do they have slots in them or are they solid?