Colognes are difficult to recommend as not everyone's chemistry is the same. The best bet to find the cologne that is good for you is to head on over to
www.basenotes.net and make your way towards the "Men's Forum" section. They have tons of reviews out by regular/die hard cologne people, so don't take everything to heart you read.
The important thing to remember is this: It's summer so go for fresh/aquatic smelling colognes as they are not very clogging and smell refreshing. Some colognes can be very clogging in the summer, case in point Angel Men (but its perfect for winter time).
Also when you spray cologne on yourself, make sure it's on your body and not clothes. That means go for the pulse points, I.e. chest/neck/wrists and you are good to go. Also don't be "that cologne" guy. Less is good i.e. 3-4 sprays max.
With all that said and done, go to an actual brick and mortar store once you have done your research and get some samples, see how you like it and how it works with your chemistry and go from there.
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On a slight side note, anyone have good deodarant/prespirant recommendations for summer?