Adox/Efke 25-50-100 like high acutance developers because they are all single layer type films.

In order of higher acutance: (Agfa) Rodinal, (Tetenal) Neofin Blue/Blau, Beutler A+B, FX-1.

With all these type of developers you can have marvellous results. Agfa Rodinal and Tetenal Neofin Blue are commercial available. Beutler and FX-1 you have to make yourself. In fact FX-1 (G. Crawley) is a modified Beutler with a very small addition of Potassium Iodide.