We just bought this one for Loki: https://www.amazon.com/gp/product/B074XM8RSF/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=UTF8&psc=1

It’s quite a bit larger than I expected and has a nice heft and sturdy feel.

I got the recommendation for this, and many other supplies here: https://www.blueskyedoodles.com/some-of-my-favorite-things-for-a-new-puppy