Here is a 13 page document dedicated to educating you on how to assess, understand and sift through all the various information scattered around the internet regarding the transmission, flywheels, clutches that can work with the various manual transmissions for swapped N52/54/55 engines into your E30 or E36. This has labels, annotations, part numbers, and various links to get you started with purchasing the correct clutch, flywheel, or pressure plate combination that meets your needs!
This is a free download, just for you, PDF Format to view and enjoy. So read through it, understand what you may need to know. If you would like to take a bigger bite, feel free to buy the entire guide for either the E30 or the E36 chassis. Good luck and happy reading!!