Divine sons of the god Poseidon include;
Triton, Amphitrite
Proteus (Mother Unknown)
Arion, Immortal Horse, Demeter
Pegasus, Immortal Winged Horse, Medusa
Chrysaor, A Giant or Winged Boar, Medusa
Golden-Fleeced Ram, Theophane
A Cyclops son of Poseidon was Polyphemus.
Yes, Triton is the son of Poseidon.
Percy Jackson is the son of Poseidon.
Amymone's son by Poseidon was called Nauplius.
Aegeus and Aethra. Or Poseidon and Aethra.
No; Odysseus blinded the Cyclops son of Poseidon.
No, Perseus is not the son Poseidon. Perseus was the son of Zeus.
Triton is a sea god and a son of Poseidon. Poseidon is known to be the god of the sea though.
Perseus from the Myths, not the books, is Zeus' son. Percy Jackson is Poseidon's Son.
He was a son to Poseidon .
Polyphemus is Poseidon's son.
Poseidon is a mythical god. It is therefore impossible to be his son or to "get" powers that never were.