D&D 5E Additional rules in adventures and settings book... an index?

[Alby87]

After hearing the idea that the mass combat rules will be in the Dragonlance adventure book, it come to my mind that there are a lot of D&D subsystem across the adventure and settings book. May you help me to have an index of everything, if I'm missing something?

• Hexcrawl: Tomb of Annihilation
• Ships and naval system: Ghost of Saltrmash
• Piety System: Mythic Odissey of Theros

Missing something?
Thank you!

 

[Quickleaf]

Infernal Contracts & War Machines: Descent into Avernus