Sebenste has given you a couple good choices for UHF. From my own experience, any 8 bay antenna, as well as my old Winegard HD-1080 2 bay antenna, doesn't work as well with VHF. If you want a guarantee that you can get CBS out of Chicago, here's a VHF only antenna that can help. https://www.amazon.com/30-2476-Fring...%2C298&sr=8-31
When I went with separate VHF & UHF antennas, and this was 2010, I got the Antennacraft CS600 antenna for channels 2-13. I partially got it, because I wanted to get WOCK-CD on RF 4, which at the time had America One (now called Yu Too, not sure about spelling). WOCK-CD dropped that network. For UHF, I originally got the Winegard HD9032. It worked for the full market stations, but it had too narrow of a beam, that it didn't pick up the LPTV stations from Chicago. I then got a refurbished Americas Direct DB8, and it picked up the LPTV stations I wanted, including MeTV on 23.1 (even though it's simulcasted on WCIU 26.3) and the HD version of The U Too (will be just the U soon) on 48.1. As for the Winegard HD-1080 antenna I have, it's used solely for 56.1.
Since you live in an area that can also get South Bend stations, if you line up your UHF antenna properly, you might be able to pick up the South Bend stations from the back side, and can get CBS/Fox from WSBT-TV. I don't know what sports WSBT-TV carries, but you'll have additional choices from that station too. Lastly, this is a long shot from Chesterton, but if you can get WMEU-CD on RF 32 (soon to be RF 18), CBS Chicago is carried on 48.3.