Hey, what do you need to know? i have madara for a while so i can help you with something

Sorry for the delay, here are some lineups with ninjas that get along great with Madara Edo full bt:

If you want me to test a lineup with my ninjas, just say so, and I'll bring you the team's strengths and weaknesses, so you don't have to buy the ninja, it won't be useful. Of these the best are kakuzu and Jiraiya which is easy to get with coupons, Orochi GNW is the best support but it's very expensive, Gengestu is even easy to get and leave full bt but he's more like a second source of damage, itachi only it will be good if it's full bt mine is not yet but I put it there just for you to see on the team, rin is essential for you not to take IK, kimi is great to deal a lot of damage with Madara's eso. Blade talents I advise you to use the 100% resistance buff for swordsmen and the chakra boost.

I'm giving you suggestions for ninjas for you to get, here are the main ones and what you should prioritize, there aren't many ninjas at first, but there are the chest ones that are good Gengetsu, Sasori edo and Jinpachi. You can get these more easily but the good ones are the ones I showed you and they aren't even that hard to get