Not more "save the realms from epic threats" 15 level hardback adventures.
On a specific note- Products like:
Volos Guides-Fun reads for player and GM. Tons of plot hooks, but nothing players shouldn't know. Perfect for creating adventures as well as improv adventures when players decide to do their own thing.
Setting products that cover a large area with less detail. DM focused. Examples-FR1 Waterdeep & the North, or The Adventure Begins as a entire setting example- Overview of the setting and then a focus on a smaller area (GH and the surrounding territory in that case)
Self contained 32-64 page adventures. Plenty of examples out there from previous editions.
Smaller more focused Monster books. Examples- 3E's MoF, 4E's Threats to the Nentir Vale. Van Richten's Guides.
Softcover Adventure books like some of the 3E Kalamar adventure products (these were official!
). The adventures have the same "theme", like say, the undead, but the adventures are not linked and are roughly the same length as classic "modules" or dungeon mag adventures. 5 or 6 adventures per book.