Which preposition to use with variant

ON Occurrences 159%

* VARIANTS ON THE ABOVE POEM:

of Occurrences 48%

Each of us has his personal variant of this common life.

in Occurrences 3%

The following two variants in 'Descriptive Sketches' are from MS. notes written in the late Lord Coleridge's copy of the edition of 1836-7. l. 247.

by Occurrences 2%

with introd., commentary & variants by Urban Tigner Holmes, Jr., John Coriden Lyons & Robert White Linker.

from Occurrences 2%

Yea, each leaf Is variant from its fellow.

to Occurrences 1%

(The Canadians, who make quite a speciality of flying matinées, are accustomed, we understand, as an artistic variant to this practice, to fasten an electric torch along the barrel of a rifle, and so illuminate their lurking targets while they shoot.)

for Occurrences 1%

[Footnote 1: An agreeable variant for this is Ju.

at Occurrences 1%

The Beaumont "Adoration of the Shepherds," with its variant at Vienna, the National Gallery "Epiphany," the Madrid "Madonna with S. Anthony and S. Roch," and the Castelfranco altar-piece are the only instances so far of Giorgione's sacred art, yet Vasari tells us that the master "in his youth painted very many beautiful pictures of the Virgin.

Which preposition to use with  variant