Labels are specifically designed for different printer technologies. Print labels for your mailing list - Microsoft Support

For those sending packages, Shippo is a top-tier choice for buying digital shipping labels. It aggregates discounted rates from USPS, UPS, and FedEx, often saving users up to 90% compared to retail post office prices.

If you have a home printer, Avery is the industry standard. They offer a massive variety of sizes and materials, and their free Design & Print software makes it incredibly easy to align your text and images perfectly on the sheet.