I would go with either a Uniden SDS-100/200 or Unication G4/G5
The Uniden SDS are both scanners and will work with all traditional bands (VHF/UHF/7/800) This also easier to program right out of the box, you can program with Zip code, however, I still recommend programming favorites list to narrow down what you actually want to scan. These scanners start at $650+
The Unication G Series are Fire Pagers, made specifically for MPSCS, the system Ottawa is on. These program similar to a radio and are more in-depth. They are also limited to the number of TG in a knob to 64. The G4s are 7/800 only and start at $580 and the G5 are Dual Band, 7/800 and either VHF or UHF and start at $670 (pricing is supposed to be changing Jan 1). I personally use this one all the time here in Kent County.
It really depends on what you want to listen to and experience in programming, however unfortunately with simulcasts in our area the scanner is going to be around $600
Feel free to contact me for more info as I sell and program both here in West Michigan and do offer some discounts off the base price.
feracomm.com