Yes, HERES is a Scrabble word!

Letter values in Scrabble US: H 4, E 1, R 1, E 1, S 1.

Is it a valid word?

HERES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

the present location; this place
queen of the Olympian gods in ancient Greek mythology; sister and wife of Zeus remembered for her jealously of the many mortal women Zeus fell in love with; identified with Roman Juno

Not playable in Scrabble US: HERA.