realworldjapanese.com/ja/guides/best-way-to-learn-keigo/
A structured 90-day learning plan for business Japanese honorifics (keigo) aimed at intermediate learners working in Japanese offices.
Business and keigoGrammarIn JapaneseKeigo and politenessBusiness JapaneseStudy methodsIntermediateSpaced repetitionYouTube channelsJLPT N3ShadowingJLPTTextbooksConditionals