Or the 4S 200A, that provides the 200A.
Those can be connected to up to 4 strings in series.
But a single 8S BMS might be a better option.
For the contactor-based ones... I'm not a real fan of those. Carefull look for their consumption. Some cheaper contactor based ones have a quite high continous current draw (keep the contactor connected).
The JK 8S 200A might be a better option compared to 2 seperate 4S BMSses. It also allows you to use a single app to see all cells (unlike 2x 4S in series - you have to switch between the both BT modules to see the readings).
Also it has a higher balance current. (50mA for the 120A JBD, 150mA for the 200A JBD, 2A for the JK)