CYBRES SP2421 seems great for the price.
For CYBRES SP2421 stencil printer
We have not used it extensively, yet, but it does exactly what we expected it to do. For metal stencils, it seems great for the price.
I have no idea how well it would work for Kapton stencils.
Notes: It's a little tricky if your stencil is too small, so give yourself some extra play. Also, we would recommend that you add the bolt holes into your stencil. If you just get a stencil as an add-on when your order PCBs, they will not create the holes. You will need to do this later, and drilling/punching your stencil will not be as accurate as just having them done during the laser cutting process.