There are many different dehumidifiers on the market, but for a basement of that size, you will need a unit with a large enough capacity to effectively remove moisture from the air. Here are a few highly-rated options:
Frigidaire 70-Pint Dehumidifier - This dehumidifier is highly rated and can remove up to 70 pints of moisture per day. It also has a continuous drain option and an adjustable humidistat for customizable settings.
hOmeLabs 4,500 Sq. Ft Dehumidifier - This unit is capable of removing up to 50 pints of moisture per day and is designed for large spaces. It also has a built-in pump for continuous drainage and a user-friendly control panel.
Keystone KSTAD50B Dehumidifier - With a 50-pint capacity, this dehumidifier is suitable for rooms up to 3000 square feet. It also features electronic controls with a LED display, a 24-hour timer, and an auto-restart function in case of power outages.
Ultimately, the best dehumidifier for your specific needs will depend on factors such as your budget, specific features you're looking for, and the climate and humidity levels in your area.