Where can I find Thai immigration forms online for filling and printing?

The question seeks sources for Thai immigration forms that can be filled out online and printed. Responses indicate that most immigration forms, including those for visa extensions, cannot be filled out online and must be printed and completed by hand. It's suggested that users determine the specific form they need and the immigration office they will visit, as requirements may vary by location, particularly in response to COVID-19. Additionally, some forms may be found in community files specific to the user's immigration office.