I use 2 developers, XTOL and Rodinal. They are two different classes of developers which produce different looks. Of course, I assume you have used a D-76 type developer which is a good starting place for everyone.(posted 8268 days ago)I avoid using Rodinal with small format. With medium format I suggest staying with the Agfa films. APX 100 is the starting point to explore this developer. Dilute to control highlights.