Hi @JimmyC
Laminate is a decent option and has herringbones that can be installed in a floating fashion but I have to agree with @Johnnyt a click system LVT with a rigid core, not the amtico 2-3mm stuff you have to glue down like a jigsaw puzzle.
In terms of engineered wood flooring I was advised against floating on top of an underlay as it should be glued down due to all the intricate pieces and angles. I did see while doing my research online that a engineered herringbone floor with a click system can be fitted floating over a UFH system and suitable underlay see this fitting guide where it advises floating method is ideal for click-joining herringbone wood floors: https://floorwarehouse.co.uk/parquet-flooring-installation-guide/
