Your subject lists rear noise from the left side and your post says that the
noise is coming from the right.

If the noise is coming from the left, it is probably not wheel bearings.  If
the noise is coming from the right when making a left turn, the noise may be
wheel bearings.  Wheel bearings generally make noise whether the vehicle is
going straight or turning, with the noise changing in pitch when turning,
getting louder from the side opposite the direction of turn.  In other
words, when making a left turn, a bad right wheel bearing will get louder or
higher pitched.

Other possibilities are rear brakes, axle, and differential bearings.

If you have rear disc brakes, make sure the backing plate is not rubbing
against the rotor and check the pads for wear.  If you have drum brakes,
check them for proper adjustment, shoe wear, and brake dust accumulation.

If you have never had the differential fluid changed, it wouldn't hurt to do
so and inspect the drained fluid for metal particles.  Inspecting
differential and axle bearings requires more skill and tools than the
average owner.