Some recent reviews (2021):

Plant growth-promoting bacterial endophytes as biocontrol agents of pre-and post-harvest diseases: Fundamentals, methods of application and future perspectives

Unlocking the potential of plant growth-promoting rhizobacteria on soil health and the sustainability of agricultural systems

Plant Growth Stimulation by Microbial Consortia

Rhizosphere Colonization Determinants by Plant Growth-Promoting Rhizobacteria (PGPR)

The Potential Application of Endophytes in Management of Stress from Drought and Salinity in Crop Plants