To get a REAL answer to that question, you write a check with at least 4 significant digits to a consulting engineer to do a search.
The practical answer for ANY metropolitan area seems to be no. If they opened a window for 100 watt LPFM community stations, it does not appear you could squeeze one in. (I didn't check all the suburban areas for that possibility.)
Watching FM applications for Construction Permits is like watching two chess masters going at it. One buys a rim-shot or further out existing FM station, moves it around, changes to directional antenna, then takes an existing station in the city which they already own and change frequency, swap with some edge-of-town license and create a new opening.
If you or I who do not currently own anything in the markets look, there is no vacant frequency. You almost have to own an existing channel which your are willing to modify, swap or some other hocus-pocus if you want to add to the station count.
I haven't been to OKC for years so I can't speak to your market, but most cities already have more channels than anyone can find creative, unique programming for. Why do we need more channels. We need operators with the guts to give up an existing bland format for something new, something daring, something worthwhile. For that, you need to be able to write a check with significantly more than 4 significant digits.