I got the Amazon Basics 15 sheet shredder and it’s pretty great. Shreds cardboard no problem. I have heard good things about the 25 page one if you want something more heavy duty. But this one works just fine for the lighter types of corrugated cardboard (like Amazon boxes)

AmazonBasics 15-Sheet Cross-Cut Paper, CD Credit Card Office Shredder https://www.amazon.com/dp/B01M0FMM70/ref=cm_sw_r_cp_api_i_ScT4EbCXFPBT4

Unfortunately seems to be out of stock at the moment