Years ago, and also last year, I bought this duxtop model from Amazon:
Duxtop 1800W Portable Induction Cooktop Countertop Burner, Gold 8100MC/BT-180G3 https://a.co/d/4l21lmb
No issues. It’s been about 5-7 years. They’ve since introduced new (to me) models:
https://www.nytimes.com/wirecutter/reviews/best-portable-induction-cooktop/
They’re worth looking into because they have more power levels.