TexasCHLforum.com

What kinds of guns do you like to shoot? How athletic are you? Can you accept being back of the pack behind old fat guys, grey haired little old ladies and bubblegum chewing teen girls?

Competitive shooting can quickly consume all disposable income and spare time but can be enjoyed on a modest budget.

If you want to shoot your carry gun to improve all gun handling skills, look into IDPA.
if you like plinking, check out Steel Challenge or Ruger Rimfire.
if you're fleet of foot, maybe USPSA.
if you like rifles, NRA hipower and hunter silhouette.
If you want be John Wayne or Annie Oakely, look into Cowboy Action.

A google search will find the national orginizations website that will list local match/club info.
Youtube has tons of videos of all types of competetion (except maybe benchrest, golf is more exciting to watch) so you can get idea of the particular game.

It is my experience that the most welcoming group of people is competetive shooters as long as you check your ego at the door and keep safety your first goal.