Ceptics 70W World International Travel Plug Adapter - Powerful GaN Tech with Pd & QC 3.0 Dual 3X USB-C Power - 2 USB Ports Wall Charger Type I C G A Outlets 110V 220V A/C - EU Euro US UK (70-KU)

I can't say this is the best, but I've used it successfully for the past 3 years in north/south America and Europe: https://www.amazon.com/Ceptics-World-International-Travel-Adapter/dp/B0CPRDBDTV?th=1& I also use it at home every day since I got it and no problems so far.