I have one of these: https://www.amazon.com/gp/product/B08K7BFP8N/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

And love it. It gets very warm and lasts for a long time.

I also have these:

https://www.amazon.com/gp/product/B09C34DBYG/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

I don't like them as much because they don't get as warm. I do like that they split in two. There are other brands that split in two and have higher power so I might get some of those.