If you are looking for alternatives to Dunkin' for coffee, breakfast sandwiches, and quick-fix pastries, several chains and options fit the bill depending on what you value most:

Krispy Kreme 4.5 (3.3K)
$1–10 Donuts
Open City of Industry, CA
CallDirections Website Best known for its warm, melt-in-your-mouth Original Glazed donuts, this chain also serves a full line of coffees, iced drinks, and espresso beverages. It is the top choice if fresh-from-the-line hot donuts are your priority.

Tim Hortons 3.4 (1.2K)
Coffee shop
Open Mission, BC, Canada
CallDirections Website A massive Canadian staple with select U.S. presence (particularly in parts of the Northeast and Midwest) that serves an identical mix of signature drip coffee, breakfast wraps/biscuits, donuts, and bite-sized "Timbits" that closely mirror Dunkin's menu style.

McDonald's 3.8 (1.2K)
$10–20 Fast Food
Open Pendleton, OR
CallDirections Website For quick, highly accessible drive-thru breakfast sandwiches (like Egg McMuffins) and surprisingly reliable, affordable hot or iced coffee via McCafé, McDonald's is a ubiquitous alternative for the morning rush.

Dutch Bros Coffee Coffee Company
Primarily a drive-thru beverage chain popular for heavily customizable iced, blended, and hot coffees, rebel energy drinks, and teas. While they don't focus on donuts, they are a great alternative if your favorite part of Dunkin' is a sweet, flavored iced coffee.
Local independent donut shops Often referred to as " mom-and-pop" donut bakeries, these local spots usually offer superior, freshly baked yeast and cake donuts, kolaches, or breakfast croissants alongside standard drip coffee, often at a better quality than major national chains.[1][2][3][4][5]
If you share your location or region , I can help find specific regional chains or local favorites near you. Or, if you are looking for a specific menu item (like a good cold brew or a breakfast wrap), let me know so I can tailor the recommendation!