Another vote for the Smyth's fold up one it's served us well so far
Love the smyths play mat, we love it and it’s so cheap and it’s foldable which is great for me as you can put it away when guests come over
Totter and Tumble is totally worth the money in my opinion so I'd save up for it. It's still used every day by my 4.5 year old and 1.5 year old. Lasts forever and is also a good yoga mat!
We got the small version of this one, has been great so far https://amzn.eu/d/gWaBm21
We brought one from smyths was only about £20 and we’ve had it months easy to clean and fold up.