Commonly used markers for neural stem cells include Nestin and SOX2. Nestin is a useful marker because although it is expressed predominantly in stem cells of the central nervous system (CNS), its expression is absent from nearly all mature CNS cells.
The transcription factor SOX2 is known to be expressed at high levels in the neuroepithelium of the developing CNS and is thought to be centrally important for neural stem cell proliferation and differentiation
Most popular markers for neural stem cells would be NESTIN, PAX6, and SOXs. You could find some more ideas in the link below: https://www.ptglab.com/products/featured-products/neural-stem-neural-progenitor-cell-nscnpc-markers/