Next cosmere book to read help

Read stormlight 1-4 (have 5 ready to go) read mist born era 1 completely and mistborn era 2 book 1-3 (have 4 ready to go)

Just finished arcanum unbounded and just feel like I’m “almost” able to grasp things. Maybe just to realiza how little I know, but start to know a little.

Read elantris as well. Heard about war breaker being good before stormlight 5.

Don’t know about the other secret projects (will read them eventually just not sure how they will fit to improve my understanding of the cosmere).

Anyone can provide some guidance please?