Some grant programs release samples of applications that have been previously funded. Reviewing these applications can be a useful starting point but it is important that you review the current requirements in the most recent solicitation as the required questions may change from year to year.
Sample Comprehensive Opioid, Stimulant, and Substance Abuse Program (COSSAP)
Sample Coordinated Tribal Assistance Solicitation applications (CTAS)
Sample Drug Court Applications