Best mat/puzzle mats for cardio in basement?

[DHKWriter]

I know this has probably been answered elsewhere but the search function is not working. I recently had to tear out the carpeting in my basement and am now seeking the best mat(s) for cardio--either a solid mat or puzzle pieces.

I've read a ton of reviews and so many of the puzzle pieces say they come apart with cardio moves. I know you all are the best at this stuff and I'm so overwhelmed with choice that I need your input!

Thank you!
Donna H