Hi Troux,
Modules that make me really happy are:
Mutable Instruments - Plaits
Make Noise - STO
Make Noise - Tempi (clock)
Xaoc Devices - Warna (buffered multiple)
Xaoc Devices - Tirana II (step sequencer, 4 steps)
Hikari Instruments - Triple AD
Hikari Instruments - Atten(uator)/Mixer
Waldorf - DVCA1
Shakmat Modular - Time Wizard (clock multiplier/divider + logic)
Doepfer - A-124 (Wasp filter)
Doepfer - A-138o & A-138p (mixer combination)
Doepfer - A-145-1 (LFO)
Intellijel - Audio I/O
Intellijel - Springray II (spring reverb)
ACL - Sinfonion (complicated thing ;-) )
Bastl Instruments - Tea Kick (percussion)
Erica Synths - Black Dual VCF
Erica Synths - Black Octasource (crazy LFO)
Synthesis Technology - E330 (Multimode VCO)
Patching Panda - Punch (dual VCA)
Of course there are many more nice modules but the above I am most happy with at the moment, my top 20 :-)
Kind regards, Garfield.
For review reports of Eurorack modules, please refer to https://garfieldmodular.net/ for PDF formatted downloads