Based on this product's specifications, here are some alternatives and similar models
Nozzle Flashforge C3P 0.8mm — compatible 3D printer extruder nozzle
Summary description:
Replacement Flashforge C3P 0.8mm nozzle for 3D printer extruders. Designed to provide a 0.8 mm extrusion diameter for coarser layers, faster material deposition and improved flow for larger nozzles. Suitable for users who need quicker prints, stronger infill or reliable extrusion with thicker filaments. Easy to install and compatible with Flashforge C3P-compatible hotends.