I think you need a subscription to get to the Which reports. Unsure if there are such lists but folk have asked about individual recommendations here before, a search may be helpful. I bought a Brita/Breville one with integral filter not so long ago, and it has been fine so far, if that's any help.
The best kettle I have ever had is a Dualit. They come in small and large sizes. As there are only two of us at home I bought the small version for everyday use, and this must have saved a few quid in electricity. I used to get through kettles like nobody's business but this one has lasted for ages.