there are many with good impact factor, some of these are ; European J. Soil Biology, Applied Soil Ecology, Annual Review of Microbiology, Frontiers in Microbiology, Journal of Microbiology, Soil Microbiology, Journal of Soil Fertility and Biology, Canadian Journal of Microbiology, Journal of Applied Microbiology, Environmental Soil Microbiology, Journal of Microbiology and Biotechnology,,Environmental Soil Microbiology, Journal of Plant Biology and Soil Health ..etc
I would suggest Plant and Soil, Symbiosis, SBB, Journal of Plant Pathology & Microbiology, European Journal of Experimental Biology, Applied Microbiology, Rhizosphere, Biocontrol, Biological control etc...