Olaniyan, ranked as the No. 18 defensive end in the country by Scout.com, says he has around 25 total scholarship offers but denies narrowing down his list.
"I haven't started thinking about it," Olaniyan said. "I should have my top five by the end of September, but right now I really don't have any favorites."
"I don't have anything planned yet, but I'll probably go to a few games," he said.
Olaniyan attended the Spartans camp earlier this summer.
"It was a good camp," he said. "I like Michigan State a lot. The coaches are great and I like the whole organization and how they run things.
"The coaches seem very truthful and don't just tell you what you want to hear," he said.
The Spartans are about one and half hours from Olaniyan's home, while their in-state rival, Michigan, is only about one hour away.
"Michigan is a great program," he said. "And I think they'll be able to rebuild. I think coach Rich Rodriguez is a good coach, but I haven't really gotten to know him yet."
Olaniyan says he's actually being recruited by Michigan quarterbacks coach Rod Smith. "We get along great," he said. "He's one of the funniest coaches I've met."
The only other school that Olaniyan got a chance to visit during the summer was Missouri and the Tigers are one of his offers.
"It was a good experience," he said of his time at Mizzou. "They have good players there and they seemed like nice people. They really made me feel at home."
Olaniyan says he doesn't have a time frame for making a decision. "I'm not sure about my visits yet, but I'm thinking of taking a few for sure," he said.
An avid college football fan, Olaniyan says he's excited for the 2009 season to begin. "I like watching college football," he said. "I'll definitely be keeping a close eye on all these teams. I try to watch as many games as I can."
For now, Olaniyan's main concern is his own team. "I'm just focused on playing my senior season and doing the best I can," he said.
Olaniyan plans on majoring in either criminal law or communications. He reports a 2.6 core GPA and a 17 ACT, which he plans on retaking.