Sometimes life is as simple as checking for a kosher symbol. The links below, courtesy of the cRc and Star-K, offers extensive guidance on brands of beer, liquor and beverages, indicating when they are acceptable.
Beverage List, i.e. soft drink, fountain soda, etc. Links to cRc website.
cRc Alcohol List https://consumer.crckosher.org/liquor/
Star K Alcohol List https://www.star-k.org/resource/list/PCW0Z0DO/Beer,_Liquor_and_Liqueur