Exploration is half the fun
To begin, like another reply stated earlier, I like Ansco 130. I bought a case of about 30 old cans of Kodak DK-60a film developer at a yard sale nearly ten years ago. It sat in a box until I bought a copy of "The Darkroom Cookbook." I found that I could turn it into the Ansco 130 by adding a few raw chemicals. Thus began my endeavor into mixing developers. I use it stock when I'm looking for high contrast, and 1:1 for lower contrast. I use it with Ilford Multigrade when I'm doing my "straight" printing. For the more expressive stuff, I go a bit more far afield.
Lith: Maco A/B Superlith and any of the following papers: Forte Polywarmtone Plus, Fomatone, Fomabrom, J and C Polywarmtone.
Occasional forays: Amidol and any bromide paper, especially Kentmere and Foma.
I'm looking forward to trying out some really high contrast formulas. Gimme dem deep blacks.
--Gary