I use an assortment of developers, usually depending on format and what's mixed up or available. Rodinal 1:50, D-76H 1:1 and 1:3 and Ilfosol-S give similar curve shapes and development-change response. Ilfotec should be about the same; I tried it years ago but wandered on to something else.(posted 8429 days ago)My "hail mary" N-3+ is usually using D-76H 1:3 at the 1:1 development time at EI 200.
The big drawback of such a contraction is that while it dramatically reduces overall contrast, the paper expands local contrast in the midtones and often leaves the shadows and highlights somewhat too low in local contrast.