Hi,
To start, you may try RTAB-Map for SLAM and move_base for navigation (sending goals directly to move_base instead of passing by rtabmap). The setup the most similar to yours is turtlebot. A tutorial of move_base/RTAB-Map integration for turtlebot can be found
here. It is the same tutorial than the
official one, with rtabmap replacing gmapping/amcl modules. For navigation, I strongly recommend to read this
page.
cheers,
Mathieu