The phrase "are too various" is correct and usable in written English.
It can be used to describe a situation where there are many different types or kinds of something, often implying that the variety is excessive or overwhelming.
Example: "The options available for the project are too various, making it difficult to choose the best one."
Alternatives: "are too numerous" or "are too diverse".
Besides, they are too various a group to speak as one.
The ways in which terrorists raise and move money are too various and too well-hidden to allow backsliding on the basic steps that governments can take to combat them.
Mr. Flick's cinematic idea is that a succession of closely observed views gives a more dynamic sense of place than would a few random shots, that places are too various and idiosyncratic to be encompassed in a single photograph, brilliant as it may be.
The sources and articles that filled my syllabus were too various for them: they wanted a unified view of the material.
Urban exploration is international, with groups around the world, but it is too various in its motives and methods to constitute anything like a community.
Music in the latter half of the 20th century was too various in form, medium, esthetic attitude, and social function to allow any confident predictions.
But their thinking is too ambiguous, the nature of human striving and aspiration is too various, and social scientific methods are inadequate to meaningfully handle concepts like wisdom and meaning.
In top-knots and droopy layers, their lines are calligraphic in motion, though when they stand still, you might not take them for dancers; they're too various.
Out of the blue, he begins to talk about storytelling and ownership, concluding that "The art of storytelling is too various to have any one person have complete control". It's good he felt that way, because he had no idea he was being written about.
Reports about length of the lesion and TASC classification were too various to summarize or were not mentioned at all.
Magazines, which range from Pro Wrestling Illustrated, Celebrity Skin, and Creative Knitting to Foreign Affairs, the Kenyon Review, and The New Yorker, are too insanely various to be credible as a single category.
