As you know, Trichoderma control some plant pathogenic fungus. If commonly say somethings on issue, there are more antagonistic fungi. However, they are not so effective as much as Trichoderma. But still there are good antagonistic fungi for some plant pathogenic fungi such as Acremonium, Gliocladium, Penicillium, Aspergillus, Coniothyrium etc. In addition, there are entomopathogenic fungi, such as Verticillium lecanii, Beauveria spp., and Fusarium, Aspergillus, Penicillium, Paecilomyces fungi are isolated from pathogenic nematodes.

I have gotten good results with actinomycetes

After Trichoderma, i have good results with Pseudomonas fluorescens as a good biocontrol agent.I am using combination of Trichoderma and Pseudomonas fluorescens in control of Fusarium wilt in Arachis hypogaea L

Pseudomonas fluorescens is a bacteria in combinaton with fungus Trichoderma working as a good biocontol agent. Apart from fungus, this combination showing best results.

Md. Rakibuzzaman Dear you can also use these antagonistic microbes i.e. Aspergillus, Cladosporium, Actinomycetes etc. other than Trichoderma spp.

Gliocladium species are appropriate for in vivo and field experiments, depends on pathogen and host plant.

There are also many bacterial species used for biocontrol, for example Bacillus, Pseudomonas, Burkholderia, Xanthomonas, Enterobacter, Streptomyces, Serratia spp. Choosing an appropriate biocontrol agent always depends on multiple actors, the host and its susceptability to plant pathogens, pathogen species and races, climate, soil conditions, agrotechnology and so on.

There are other antagonistic fungi than Trichoderma ,like some species of the genus Laetisaria or Cladorrhinum

Md. Rakibuzzaman it's depend, upon which host you are going to apply BCA, if you want to inhibit the nematode population then Paecilomyces, Verticillium and Metarhizium are effective BCA.

There are many beneficial fungi in the universe, but I suggest you may try Phomopsis genus because I have gotten very good results against phytopathogenic fungal and bacteiral strains.

Bacteria like Pseudomonas fluorescens and P. chlororaphis are known as biocontrol agents of plant pathogens. Also Bacillus subtilis, B. amyloliquefaciens and B. cereus are highly efficient and are formulated as commercial products (Double nickel TM, Serenade TM). Bacteria has some advantages over fungal biocontrol agents: They grow really fast (24 hs), easy to apply as liquid suspension, easy to manipulate and genetic engineer (obtain mutants resistant to certain antibiotics to recover them from the environment once inoculated, add fluorescent genes to track their movement in the plants, etc).