You asked

What are the alternatives to the olympus m zuiko 17mm f 1 8?

If you want the same 17mm view on Micro Four Thirds, the site has two other lenses in this focal length.

All three frame the same, about 34mm equivalent. The aperture is the only real difference, and the focal length converter shows how much that changes the background blur.

Written by Claude from this site's pages.

From these pages