Ask HN: German company didn't pay me for two months

I worked for a German company that didn't pay me for 5 months, during that period payment was always late, then it didn't come for two months then I was let go, which was good for me since I was going to quit anyways and if they fire me I get a three weeks severance, but after they let me go, they emailed that they will pay me then cut contact for the last month with 0 news. I'm not based in Germany or Europe so suing is a bit hard, which they know and are ignoring me probably for that reason. I am now trying to reachout to lawyers and see if I can start a case against them, but I'm wondering if I should contact their investors to put pressure on them, or share my story publicly on their social media.

I honesty don't know what the best course of action is in this case since I never had this happen to me in my whole career. Any advice?