If you want crunch, you can update the saga edition, or get the fan edition. If you want lore, the fandom wiki is enough.
Maybe you should ask your players whant they want or may dislike. Maybe you should mix both continuities, the new saga and the "legends", and the timeline being rewritten, for example the Yuuzhan Vong arrival in several wave for different ages of galaxy.
We pretty much just use legends.
1. All the rpg material we ave is legends
2. The players chose legends.
The only viable Disney one was a Mandalorian inspired game as legends material could be used in that timeline (Eg E-Wings, EU capital ships etc).
You coukd maybe use some legends material and resting it for say TFA timeline but combination of indifference/not worth the effort required killed it.
You could also do a canon Rebels era game I suppose.