"Rechtsschutzversicherung." You want it to include "Arbeitsrechtsschutz"
I would also advise you to include defamation, in case somebody sue you for defaming them. Usually many legal insurance exclude "internet" from the protection, this means that if you post on hackernews "Hans is an idiot", and Hans sues you, you might have to pay the lawsuit yourself. These insurances usually have an "internet" options for usually ~20€/y which would protect you in this case. You can still deduct the entire amount from your taxes, as it's still technically a labour-law legal insurance.
