Looking for Parks in Northwest Indiana

I’m looking for parks in Northwest Indiana. Let me know what you have available or what you may have access to. I am willing to pay referral fees. I am looking in Lake, Porter, Newton and Jasper. I am looking to stay within 2 hours of Chicago. I would like to stick with parks that have city water and sewer. Owners willing to carry portions or all is a plus. Depending on the size of the deal I may be able to pay cash.