Tazewell's link is great reference and in the Peoria market you only need a UHF antennae (HD antennas are a marketing ploy). If you mount it outdoors or in the attic, the classic DB4 should work for you, but I have seen some use a DB8 that rotates one side versus the other. I think FOX43's tower is out towards Goodfield, whereas the other ones are in East Peoria. Depending on your location, you might sacrifice one for the others. I have a DB4 and have it facing towards Goodfield since 19, 25 and 31 are close enough I probably don't even need the outside mount. That being said, I also get WAND 17 out of Decatur. I have my drop amplified to an x8 splitter for all of the bedrooms, living room, … but probably only use 3 or 4 of them.
You can play around with those "drop behind the TV", inside units to see if they work for your situation. At a point though, one central unit may be cheaper than 3 or 4 individual units. I'll try and dig up the link on antenna amplifiers. I had found a site that helped calculate the amount of dB's versus footage of wire and number of splitters, … You can over amplify the signal too.