I was thinking of getting 2 of these:

https://www.ebay.com/itm/202248089627

if anyone has any better options please feel free to share

They are highway robbery.

172 each is a rip off

eBay item

332572578907

https://www.ebay.com/itm/HP-EO4501-Modular-Rackmount-Power-Distribution-Unit-228481-002-24A-200-240VAC-/332572578907?

Much better

Does 4 s-9s only 70 or best offer

What are your psus?

https://www.ebay.com/itm/NEW-8-2FT-2-5M-250V-16A-C19-to-C20-PDU-Server-Cord-DP-N-2X976/281944781556?

https://www.ebay.com/itm/4-foot-Power-Cord-Black-NEMA-C20-to-C13-14AWG/301969734091?

one of the two above should work.

if you have 2x

30 amp breakers

you may be able to do 4 s-9's on each pdu

you will be able to do 3 s-9's on each pdu for sure.

a lot depends on heat and your voltage I am lucky I get 242 in from the street and sag to 239

so 24 x 239 = 5736 watts or 4 s-9's