[paviva]

You're searching for a very niche product: something that's not simply a metal vessel that you can use to boil water, but that's not a full-featured water boiler/warmer[1].

Electric boilers last forever, usually have multiple temperature settings, and don't have you wait before the water is ready. If you drink a lot of tea, I strongly suggest you try one.

[1] https://www.zojirushi.com/app/category/water-boilers-warmers

[anotheryou]

It's not very niche. Nearly every household and workplace I know has an electric kettle.

[occz]

Maybe niche where you live. Where I live (europe) every home has one.