Is there a brand of coffee that leans towards a sweeter, less bitter flavor?

There are many brands or rather roasts that do. You want a light breakfast roast, not a dark roast. The darker the roast, the more bitter. There are also many coffees that are pre-flavored, such as hazelnut or Irish cream. You can find most of the different flavors at specialty stores. You can, of course, always add milk and sweetener to reduce bitterness, or reduce the bitterness of the coffee by using less grounds for drip or perked coffee makers and/or not letting it steep as long in a French press. The longer coffee steeps and/or the higher the ratio of grounds to water, the richer and, for some, more bitter it will taste.