Which preposition to use with conglomerations

of Occurrences 25%

But the church with its eighteenth-century tower is perhaps the most amazing conglomeration of the work of all periods since the twelfth century to be found in southern England.

like Occurrences 1%

By that time a conglomeration like a mass of writhing serpents was letting itself down the side of the den, and when it got to the bottom it shot out a head, made itself into the exact shape of an owl without wings, and began to fly about the place.

without Occurrences 1%

"Life is a kind of conglomeration without dates," said Linnet.

Which preposition to use with  conglomerations