Yes.
Apollo
The Greek gods didn't have symbols the way you might be thinking.
The spear, helmet, dog, chariot and boar.
With the Greek goddesses and gods.
The Greek gods were worshiped in all ancient Greek cities.
The king of the Greek gods was Zeus, god of the sky, thunder and lightning, law, order and justice. His main symbols were the lightning bolt, the eagle, the bull and the oak.
With the Greek goddesses and gods.
By today's standards, all of the Greek gods and goddesses were bisexual.
Not all of the Greek Gods and Goddesses
Greek gods are as real as any other gods.
I don't think Chimera has a symbol, most symbols are just assigned to Greek Gods and demigods, not monsters or creatures. There are few monsters and creatures that do have symbols, though.
The Greek gods were collectively known as the Pantheon, which in Greek means all gods.