Looking for a amphibian that can be left in salt water over the summer

I have access to a dock on an inlet, wondering if it’s possible to keep an something in the saltwater for 6mo at a time then be trailered back to my shop

Open to ultralights too but would prefer 2 seat min.

I like the searry, icon, osprey, lake buc etc but I don’t have any experience in any of them, I’ve just flown 172 on floats.

Anyone know of cheap fun planes that could withstand the corrosion/salt?