I would like to work with with several working electrodes sharing 1 auxiliary and 1 refrence electrode, what models do you recommend?

Portable multichannel instruments without EIS : µStat 8000/P  (8 channels) and  µStat 4000/P (4 channels):

You may work with 4 WE or up to 8 WE depending on your model

Available techniques in multichannel configuration (only potentiostatic): LSV, CV, SWV, DPV, NPV, NDPV, AD, ZRA, FA, PAD and COUL.

 

Multichannel instruments with EIS : µStat Multi4 (4 channels), µStat Multi8 (8 channels), µStat Multi12 (12 channels) and µStat Multi16 (16 channels):

You may work with 4 WE,8 WE, 12 WE or up to 16 WE depending on your model

 

Available techniques in multichannel configuration (potentiostatic and galvanostatic): LSV, CV, AD, COUL, LSP,CP, PD and OCP