The Star Firestar Plus is only a little bigger than the Firestar, takes a 13 round mag, and is a bit lighter.
Thereare lots of good cheap single column 9mms. Walther P-1s and P-4s as well as P-5s, Star BKS, BM and BKMs, Astra A-70 and A-75s, the Zastava M88 and M88A, The various 9mm...