Honestly, if you want a Razor, why not just get a Razor?
That having been said, the best bang for the buck is probably the Delta Stryker 1-6x24 if you can find one in stock. I really like the one I have.
I am looking at Sig Tango6T 1-6x24 right now and it is a nice scope in the same general vein as the Gen2 Razor, except it has both SFP and FFP models. SFP models with hellfire reticle would be the closest to the Razor.
Athlon Cronus 1-6x24 is along that same vein and also from LOW. Different reticle arrangement though and I do not know if the illumination is as bright.
There are a few Trijicon models, but they lost me a little bit with the branding changes. I am not sure what is new and what is just re-labeled.
Meopta Meostar R2 1-6x24 is excellent, but I think it is more expensive than the Razor.
Geissele has a 1-6x26 LPVO, but I have not tested it.
Leupold has VX-5 1-5x24 and VX-6 1-6x24 with FIredot reticle.
That's the stuff I can think of off the top of my head that's 1-6x24, SFP and with fairly bright reticle illumination. I am sure there are others.
ILya