If you're looking for anime similar to The Genius Prince's Guide To Raising a Nation Out of Debt Short Drama, you might like these titles.
Chibi shorts for The Eminence in Shadow published on Kadokawa's official YouTube account.
Chibi shorts for Seirei Gensouki: Spirit Chronicles published on the official Twitter and YouTube accounts for the series.
Chibi shorts for My Next Life as a Villainess: All Routes Lead to Doom! X published on the official Twitter account for the series.