Reddit reviews Four Revenge Tragedies: (The Spanish Tragedy, The Revenger's Tragedy, The Revenge of Bussy D'Ambois, and The Atheist's Tragedy) (Oxford World's Classics)

There is also the concept of revenge. Revenge comes about through means of either some form of injustice, or blind misunderstanding.

Blindness is a theme throughout all of them either literally or figuratively to what is believed versus what is real.

There are several essays written about Elizabethan revenge tragedies and classical revenge tragedies. Seneca wrote many revenge tragedies and he borrowed on the Greeks. Shakespeare in turn borrowed from Seneca even mentioning Seneca in Hamlet.

Look at this description of four Elizabethan tragedies: "Each of the four plays here subverts the genre, and deals with fundamental moral questions about justice and the individual, while registering the strains of life in an increasingly fragile social hierarchy."

https://www.amazon.com/Four-Revenge-Tragedies-Revengers-Atheists/dp/0199540535

It is no coincidence that the themes are consistent with classical tragedies. So look at the moral questions of the individual vs. justice/the state in the context of a fragile society on the verge of collapse because of what the rulers are doing.

Hamlet fits within these plays very nicely. It is a tragedy concerning rulers, there is a context of war. There are themes of justice and fate, there are questions as to whether the main characters have redeeming qualities.

There is no vacuum here. This question has been looked at and redeveloped for centuries. You could ask about what are the themes that link Othello, Richard III, Hamlet, and the Spanish Tragedy.

You might consider looking at the essays that ask for comparisons between more modern tragedies and the classics. Remember that the Latin playwrights followed the Greek tradition and look broadly at concepts in tragedy or revenge tragedies.