The 2014 guard already claims offers from the Hawkeyes, Arizona and the home-state Buffaloes. Fox Sports Next ranks the 6-foot-1, 160-pound playmaker as the 16th-best point guard in his class and a four-star prospect on it's five-star scale.
Collier visited Iowa City in December during his sophomore season at Denver East High. He connected with Hawkeye Coach Fran McCaffery.
"I like him a lot. I watched him coach when I was there," Collier said. "I like the way he coaches and talks to the players. I just like him."
Collier has built a relationship with Iowa assistant Andrew Francis.
"It's good," Collier said. "We talk like every other day either with a text or a phone call."
Francis told Collier that he likes the poise with which he plays.
"He said he likes that I play under control and I don't rush playing," Collier said. "My shooting is improving and I can get to the basket."
Collier plans on choosing a college after the next July evaluation period.
You'd have to think Colorado will be in the picture at that time. The Buffaloes are local and connected with Rodney Billups in the picture.
"My relationship is real good with them," Collier said. "Even before he was like the coach, he was like a big brother to me. It's just real good."
Collier said he has no more visits scheduled.
"It doesn't matter who is next," he said. "I just want to go out and see some schools on unofficials and then a few when official visits start coming."
Collier said he would be attending the John Lucas Midwest Invitational Camp Oct. 13-14 in Louisville with a goal to "just to play against high competition and to get ready for the upcoming high school season."
Collier said he also gets tested in Denver.
"Our league isn't very good, but once you get out of the league, it's good,' he said. "We go to Vegas, Utah and Milwaukee this year. That will be good competition, too, to play against those guys."
Collier saids that how he fits in at a school and his relationships with the players and coaches there will be keys in his commitment.