From left to right:
Rabbid Peach
Princess Peach (wedding)
--
Fire Peach
Mario 1 Peach?
--
Princess Peach
--
Paper Mario Peach?
Peachette
--
?
Biker Peach
Princess Peach (sunshine)? (wrong hair color and outfit)

Tagged but not placed:
Shadow Queen, not obvious.
Toadette, not there. Wrongly put because of Peachette?

Not sure if it's intentional, but I dig how the Shadow Queen's crown looks like a glaring eye.
Totally not Magolor talking here, nosiree

Musaran said:

From left to right:
Rabbid Peach
Princess Peach (wedding)
--
Fire Peach
Mario 1 Peach?
--
Princess Peach
--
Paper Mario Peach?
Peachette
--
?
Biker Peach
Princess Peach (sunshine)? (wrong hair color and outfit)

Tagged but not placed:
Shadow Queen, not obvious.
Toadette, not there. Wrongly put because of Peachette?

I believe that the 3rd to last peach might be from that old Super Mario japanese animated cartoon where she's marrying some Prince. Her hair was shorter there.

Peach with the parasol might be from Super Princess Peach, where the parasol was her (magic) weapon of choice.