There are a few threads on this same question.... Would look at Coaltrain, Weber and Veterans for bottles. Brewers republic for taps.... More and more brewpubs popping up... Lots of opinions on those but I'll defer to others for feedback.
Trinity for the saisons and the DIPA. Paradox up in Woodland Park does all barrel aged. Great Storm for the Rum Raisin Stout and all their stuff is well made overall. Red Leg is in between Trinity and Great Storm and has a military theme. Phantom Canyon is the only brewery downtown and is decent, with cheap happy hours. Bristol if you want to drink in a renovated elementary school and its always packed. Rocky Mtn for off-the-wall styles and a blue collar atmosphere. Pikes Peak in Monument is solid too. Brewer's Republic and Front Range BBQ have good taplists.
I just visited Phantom Canyon and Pikes Peak Brewing for the first time. Both are worth a stop in my book. Cheers.
