Help estimating calories in beer?

I’ve been having trouble losing weight. I’ve been fasting completely for 3 days and eating super clean 2 days. Weekends I almost always drink and I’m starting to realize there’s a lot more calories in the mixed drinks and beer I’ve been drinking than I thought. I want to see how many calories are in a few of my favorite beers that are a bit different styles and use that as a point of reference. I know it’s hard to find accurate calorie info for these types of beers so any estimates you give would be appreciated. Thanks.