Here are some possibilities
Point Guards
Kyan Anderson, North Crowley in Fort Worth. Currently signed with Providence but with their coaching change it is possible he could be on the market. I haven't been able to find anything where he stand specifically with the coaching change.
Eli Carter, Brewster Academy in New Hampshire. More of a combo guard, but OU has been recruiting him.
Trey Davis, Woodrow Wilson in Dallas. I don't think OU has ever looked at him before but he put up impressive numbers during the high school season and was one of the best scorers in a loaded DFW area.
Jeremy Jones, Seward CC in Kansas (originally from Chicago) - score first PG who OU was after before Capel was fired. 3 years to play 2.
Sam Grooms, Chipola College in Florida (originally from North Carolina) - Considered one of the best PG recruits left in the nation as UNC and Duke both showed interest in him. Supposedly was close to committing before Capel was fired.
KC Ross Miller, New Orleans (can play immediately with 3 years of eligibility) - Originally committed to Kentucky like 4 years ago, signed with LSU, didnt qualify. Spent the fall semester at Florida International sitting out, then transferred to UNO for Spring. Averages at UNO 9.7 points, 44% FG, 50% 3 (10-20), 74% FT, 3.4 assists, 2.8 turnovers in 20.5 minutes. 13 games played.
Dantley Walker, Lincoln County in Panaca, NV - UNLV commit but not signed. Small school kid, all time leading scoring in Nevada high school according to ESPN. Averaged 36 points, 10 assists, 5 rebounds and 5 steals this year while earning Parade All American honors. Career high is 73 points. Apparently is a member of the church of Later Day Saints so he might miss two years.
Devante Smith, Douglass in OKC - Complete Dark Horse and I doubt it would happen but since he's one of the best PG in the state why not throw his name out there. He is a distributor first, little small but is a competitor.
Posts
Phil Jurick, Chattanooga St in Tennessee - Already visited here, is said to be quiet on his recruitment. Will be interesting to see if Kruger is able to grab him.
Jarion Henry, Kimball, in Dallas - Son of Skeeter Henry, OU never really showed much interest. I expect him to end up back on the West Coast (moved from California to Dallas 2 years ago). Is a fiery emotional player and very skilled for his size at 6'8. More of a 3 than a 4, also skinny.
Luke Johnson, Wheaton Academy in Chicago - 6'9 UNLV recruit, unsigned. A quick google search didnt lead to much on him. School list per ESPN Evansville Aces, Wichita State Shockers, Loyola (IL) Ramblers, UNLV Rebels, Northern Illinois Huskies
Lekan Ajayi, Quality Education Prep in North Carolina - 6'10 raw prospect with big upside, OU had showed some interest in before. Seen ACC and Big East schools wanting him.
Eric Katenda, Sunrise Prep in Wichita - More of a combo forward at 6'8, recently cut his list to 3 schools so I have no idea if OU will or could get involved but he is regional.
Those are just some of the names I've seen mentioned before or regional guys I've been keeping an eye on for sleeper options.