I have a lot of lenses. The 10.5cm F2.5 - the S3-2000 has framelines for it. Smoother Bokeh than the 8.5cm F2. Both are great lenses.
Wide-angle: the 3.5cm F2.5 is as sharp as the 3.5cm F1.8, just slower. I got my 3.5cm F1.8 before prices went up. The 3.5cm F3.5- much better than I thought it would be, bought mine as it is MIOJ. Had one long ago, was only "okay stopped down". The 1949 lens- really good even wide-open.
The 2.8cm F3.5 is great, but you'll want an external finder for it. I use mine on the SP.
The 13.5cm F3.5 is really good, and dirt-cheap. Under $100 gets a really good one. The SP has framelines for it as well. The S3- external finder for 135, usually cheap and some older lenses come with it.