Who doesn't love talking to themselves. Well, that's exactly what I enjoy doing, so here goes. ..
Also, overlooked, the obvious idea are scarlatti sonatas, but with a more innovative approach, Cpe Bach wrote so much and some of it might work perfectly in this context. I've been listening to his sonaten fur kener und liebhaber past 2 nights, some of it is very easy to appreciate. Pletnev also did Cpe Bach on piano, a whole album, I've never listened to it, but now plan to. Maybe someone can benefit from those ideas.