It is hard to suggest unless you we know where you plan to fish and what for. For instance....I wanted the versatility to fish big and small water so I purchased a used Hobie 14 ft PA....still expensive at 3,000 but it is a very stable kayak that holds up to 600 lbs, and this is my first kayak.
That brings me to your weight....it is a consideration depending also on the weight of your gear. For fishing a sit on top kayak is more suitable rather than an enclosed kayak.
If you want to be able to stand width is a thing to look at and will it support a casting bar.
Do you plan to install electronics....there again weight and where. I am not sure on how serious you are going to get. Myself for instance got very serious and my kayak can be viewed under the heading of Building a fishing Kayak. I will post the link here. Look through the thread of it and through the other kayak threads and that will spur answers and also more questions.
https://www.lakesimcoeoutdoors.com/forums/i...showtopic=46788Read lots before you buy and know what you want to do with it. Many are here to answer any questions you may have. Can always message people as well if you have questions regarding their kayak.
I am still working out the final product of my fishing kayak.....have to move my seat onto some sliding tracks to distribute the weight towards the back offsetting the trolling motor.
Good luck to you and remember read and ask questions. There is a lot of good info in the kayak section itself.
Xiaolu is also a wealth of information....a serious kayak fisherman with a lot of experience. He is also a very helpful person.
Arnie