Organic solar cells are the latest generation of photovoltaic cells. They contain one or several photoactive materials sandwiched between two electrodes. They can convert sunlight to electrical energy effectively.  In this review paper, we present a comprehensive summary of the different organic solar cell (OSC) families. The main aim is to study the comparison between Dye-sensitized “DSSC", Organic, and Hybrid Organic-inorganic “excluding perovskite" solar cells. The performance, materials, theory of operation, and fabrication techniques of each excitonic solar cell type are presented. The first section describes the different types of excitonic solar cells. The second part talks about a comparison between the different related works in literature. The final section explicates the preparation of different materials applied for electrodes. The progress of numerous organic materials which are used as the active layer and their influence on device efficiencies are also illustrated. Concluding, several transparent anode materials are used to fabricate organic solar cells in the presence of an active layer. The obtained research findings indicate that the experimental conditions and the different types of organic solar cells can control the properties of the produced samples.