According to NFPA, types of foam are:

Protein Foams (Proteins)
Fluoro Protein Foams (Chlorine + Protein)
Synthetic Foams (Mixture of different Foams)
AFFF Foam (Aqueous Film Forming Foam)
FFFP Foam (Film Forming Flouro Protein)
Multipurpose AFFF
Alcohol Resistance Foam (For Alcoholic Fire)