Need to start PXE booting. VLAN already has help address, is there a way around this

Hi,

I was hoping ot get some solid info on this we have vlan 120 with

ip helper-address x.x.x.x <---windows DHCP server

this same vlan also needs to be used for some PXE boots

To my knowledge you can put multiple helper addresses and it will fall through in order, or maybe there's a way to set boot options in Windows DHCP.

Was wondering if anyone has a best practice solution short of creating a dedicated PXE vlan