Over the past few months, we here at Outlaw D&D have dabbled with jungle adventures in Chult in great anticipation of Tomb of Annihilation. As resources for the jungle were a little scant at the time (The Jungles of Chult 2nd Edition Source Book and a few DMsGuild Items,) as DM, I did a little cut and paste from another source to begin our adventures - The Fabulous Razor Coast setting from Frog God Games.
Using the map in DMsGuild's fantastic Jungles of Chult Factbook by Mike? as a base, I added hexes hexes and The Razor Coast material ... yeah ... it's down and dirty as photoshopping goes, but it's a great DMs map for what it is.
The area between The Razor Coast and Chult proper is what I have called the Green Hell, As swiped and modified from the Jungle Ruins of Madaro-Shanti module by Frog God Games as well, and the setting for our initial dabblings in Chult. Most of the new areas are Halruuan settlements, or at least have such a heritage, as some have become the domain of pirates. Basically, I didn't want to interfere with anything ToA would introduce, but we were all pumped to play in the jungle.
I don't know if the above cobbled together map will be of any use to you and your game, but I posted it here for those that follow this blog as a reference for where the next series of posts will take place.