Who were the sirens allies in greek mythology?

In Greek mythology, the Sirens were often associated with the sea and were considered allies of the goddess of the sea, Poseidon. They were also linked to other creatures of the ocean, such as the Nereids and various sea nymphs. Additionally, the Sirens sometimes collaborated with the Furies and other supernatural beings, but their primary role was to lure sailors to their doom with their enchanting songs.