Coupons can be emailed to you. If you want to receive coupons in the mail, sign up for any coupon website or app program. Their monthly program can help you get the coupons you want.
You can also find coupons in the newspaper, or ask your local grocery store to save them for you.
Most major grocery stores offer coupons on their websites, such as Walmart, Kroger, Safeway, Publix, Meijer, Wegmans, and Target.