KTTW (FOX) is a very weak station at only 7.5 kW according to Rabbitears.info

It's also VHF. You could possibly keep your existing antenna and add one of these using a VHF/UHF joiner . Other joiners may be better. https://www.newark.com/stellar-labs/30-2476/deep-fringe-directional-antenna/dp/71Y5462

https://www.amazon.com/Masthead-Antenna-Combiner-Inputs-Combined/dp/B015ZSVDAW/ref=pd_sbs_23_4/143-7438751-5525118?_encoding=UTF8&pd_rd_i=B015ZSVDAW&pd_rd_r=fd457858-ae20-4cd3-bfaa-555a3d812692&pd_rd_w=5DFhR&pd_rd_wg=tzNo4&pf_rd_p=d66372fe-68a6-48a3-90ec-41d7f64212be&pf_rd_r=FTCAJF0JYW6RJD6TX48Q&psc=1&refRID=FTCAJF0JYW6RJD6TX48Q

Or buy a new antenna that excels at VHF and UHF like this (or better) https://winegard.com/products/hdtv-digital-antennas/outdoor-antennas/platinum-hd-series/platinum-series-hd7694p