The phrase "wide range of subjects" is correct and usable in written English. This phrase is used to refer to a variety of topics. For example, "This course covers a wide range of subjects, from mathematics to art history."
The material covered a wide range of subjects.
The essays cover a wide range of subjects.
Her songs cover a wide range of subjects, from sexuality to religion to designer accessories.
Dr. Edgerton trained his new tool on a wide range of subjects.
The New Naturalist series continues to cover a wide range of subjects.
They covered a wide range of subjects, and they were embargoed until 5pm.
The institutes are nonprofit groups that bring people together to explore a wide range of subjects.
This textbook presents a wide range of subjects in neuroscience from a computational perspective.
They interview a wide range of subjects...from people on the street to members of Parliament.
Readings in a wide range of subjects form the basis of discussion and other activities.
The images in the photograph album cover a wide range of subjects.
I love the desktop app, it’s always running on my Mac. Ludwig is the best English buddy, it answers my 100 queries per day and stays cool.
Cristina Valenza
Retail Lead Linguist @ Apple Inc.