Even if your goal is to read all of Shakespeare, that doesn't mean you're disqualified from exloring other writers. One idea is to read one play by Shakespeare and one play by not-Shakespeare, a month. The contrasts- and the similarities- that come through can be really fun.
Read another play! Not Shakespeare!
Either someone writing during Shakespeare's lifetime (approx 1564-1616) anywhere in the world,
someone writing plays now, a mid-this-century writer ( Pulitizer prize winners, perhaps?),
someone writing plays where you live, someone writing plays in a country you want to visit- there are so many voices and stories to enjoy.
the point of this section is to "yes, and" the concept of reading Shakespeare, bridging out into a much wider, older, newer, literary world of intersectional demographics, talent, perspective, and stories.