I've been using a Hogore branded adapter for a year now. The magnet is good, but it can easily get out of alignment if there is movement. No issues if you have the laptop stationary.

https://www.amazon.com/Magnetic-HOGORE-Converter-Charging-Compatible/dp/B07H91QVFX/ref=sr_1_3?keywords=HOGORE&qid=1566187408&s=gateway&sr=8-3