It really depends how you set up your diet - people who are very strict on macros obviously will need to make sure that this actually fits into their macros - but my observations:
1) Many of the major national brands - yoplait, Dannon, etc - have been putting out their own "Greek" yogurts since this became a thing in the last few years. Most have low protein and high sugar for something that's trying to pretend it's "Greek" yogurt. They are total crap. Ignore them.
2) Chobani is marginally better than the aforementioned options - higher protein, slightly better quality - but as they try to answer the moves from yoplait and Dannon to create their own Greek yogurt brands...they're basically turning their product into the same crap those companies are selling. Adding fake fiber, artificial sweeteners and colors, selling a "100 calorie pack" because it tricks people into thinking "Oh, great, I'll get the 100 calorie pack because it's healthier than that regular stuff"
3) Fage is probably the best of the major brands you can find in a lot of "regular" stores. Their full-fat yogurt is really good. Almost like eating heavy cream. High protein, low sugar. And if you ask me, the extra caloric hit from full-fat vs. fat free is still pretty much a drop in the bucket spread across a full day's intake. I would rather have the delicious full-fat yogurt and all of the accompanying benefits; much of the nutritional value from dairy is in the fat, anyway.
4) If you live near a Whole Foods, they carry a brand called Siggi's, which is a slightly different product (Icelandic style "skyr" - Google it to read the nuanced difference between skyr and yogurt, but ultimately, it's a high-protein fermented dairy product, somewhere between yogurt and cheese) that is very, very good and offers some nice options in the lightly-sweetened, low-carb department. Just enough of a sweet flavor to enjoy, but reasonably low amount of added sugar and (I think) no artificial sweeteners.