Here’s a link to my blog post last year on the process I went through to select my kayak, titled… Pick The Right Kayak.
A great place to start your research is with this kayak selector tool (below) from Austin Kayak. Narrow down the activity with the different types of kayaks for a suggested ranking. To read the full article check out their ACK blog post, Don’t Have a Yak Attack.
Good luck and don’t over think it.