Get something with adjustable heat. I found mine on Amazon, doesn't have a "brand" and it's just a cheaper one but it works great. Works better than my 2 old walnut hollows. It has duel plugs with 2 pens and you can change back and forth with the flip of a switch. Digital read out of the temp is really nice too. I found one on Amazon, something like this https://www.amazon.com/Burning-Professional-Burner-Pyrography-Beginners/dp/B08ZLKRXDB/ref=mp_s_a_1_30?crid=UXS0JX52IA4P&keywords=wood+burner&qid=1640275708&sprefix=wood+burner%2Caps%2C140&sr=8-30

It has many different tips to choose from. With the 2 pens you can use 2 different tips and not have to wait for it to cool off before changing them, just switch to the left mode or right mode. Happy burning!