Paris is not a good place for beer, everything is overpriced and there is not too much beer variety there to begin with. If you were heading to Alsace, Normandie, or Bretagne I could make some decent recommendations.
One thing you should do, though, is go to a McDonalds, have their beer (Kronenbourg 1664, decent mass-produced lager) and order a Croque McDo, the Croque McDo isn't listed on the menu, but every location has it, its pretty much the best grilled ham and cheese you'll ever get from any fast-food place anywhere.
As for specific beers, not much of quality on tap in most locations, but sometimes a place will have a good bottle selection. Most beers from Brasserie de Lancelot are pretty good, especially their Telenn Du, its made primarily from buckwheat. I've found some decent belgian brews in some restaurants/pubs, stuff like Delerium Tremens and La Mort Subite.
Find some good Breton cider, it is better than the Norman cider by leaps and bounds.
Honestly though, unless you're in the northwest of the country, where cider is king, wine is your best bet for a good beverage in France.