My favorite species to target would be speckle trout...... but I have to be realistic, only can fish for them from April to September. It's the most beautiful fresh water fish I've ever seen, hard to catch and puts up a great fight.
On the other hand, bass & pike are plentiful up here, so is walleye..... can fish for bass from mid June to end of March..... pike & walleye from mid May to end of March. I mostly practice CPR but like to keep walleyes for a fry.
So to answer your question.... walleyes is the species I could target for the rest of my days Good eats and fun to catch!!!
Leechman