https://www.amazon.com/Honeywell-DH70W-Dehumidifier-Anti-Spill-Continuous/dp/B00QUWPF6G
We have this in our basement, and it keeps the moisture at bay nicely. It has an option of collecting the water in a large removeable collection tray, or automatically pumping it to a sump pump hole (like we have).
We don't live in a area that has salt water anywhere near though.