Go elcan spectr like what I and many others did. It's a 2000$ optic and worth every single penny, you don't need the batteries for the crosshairs to work. The quality of the glass is incredibly high, its Canadian made, no Chinese stuff. It is an extremely sought after optic, but yes it's pretty damn expensive.
Otherwise, I would go with an eotech 512 or an xps with a g33 magnifier, that would run you about 1000$ but then of course you would need batteries, but then again the glass is phenomenal.
You don't need to go aimpoint although that is a very high quality optic as well, eotech is just as good, the only difference is battery life, but damn it just buy a whole damn box of batteries and keep some in your belt!
If you really want no batteries and acogs are too high priced for you, you can always buy a BROWE BSO like I put on my T97, its a 5.56 crosshair and it's phosphorescent. Browe glass is also very very good quality, that would run you about 1000$ bucks as well.
So here's a picture top left you got the eotech xps2.2 with a g22 mag(the old version of the g33), to the right of that you got the BROWE BSO and right on top of the Tavor rail you got the Elcan SpecterDR