You asked

L mount or sony e?

The site doesn't compare the two mounts head to head, so I can't tell you one is better. The Sigma 35mm, 50mm and 65mm f/2 DG Contemporary primes all come in both Sony E and L-Mount versions. They're made for full frame sensors, with autofocus and no stabilisation. So the mount doesn't limit your lens choice. Pick the camera body you like best, and the lens will fit.

If you're still choosing your first camera, Your first camera explains why mirrorless is the sensible place to start. The Lenses page covers third-party makers like Sigma, and is worth a read before you commit to a mount.

Written by Claude from this site's pages.

From these pages