There are two more games scheduled to be shown on Peacock: Michigan St. 2/4 and @Illinois 2/11, two of the best teams in the conference. If you don't have Peacock and don't want to search for a stream or wait for the next day replay on Big10+ (if you have that), then just subscribe to Peacock for one month for only $7.99 and then cancel In fact if you did that before last night's game you would have gotten all three for less than $3 a game. You can also get your money's worth by watching some other programs like the SNL50 documentaries.
They don't have free trials, but there are student and military discounted rates.