Which non-German vehicle manufacturers have a good spare parts supply?

Hello together, I’m thinking about getting a new vehicle. I like Japanese vehicles, however, have found that the spare parts market is much thinner than, for example, Mercedes or VW. If you break an exterior mirror or headlight you can simply buy one from the accessories for a German vehicle or go to the scrap yard, with a Toyota the only way usually leads only to the dealer. Since German vehicles susp ekt are, I think, to rely on another factory. Is there in your opinion a non-German vehicle manufacturer, who has a good spare parts supply?