I have tried out Gnome, KDE, Lxqt and Xfce on a regular desktop and all of them feel nice. I haven’t tried many DE’s on a laptop.
Are there any particular DE’s you like on a laptop, because of things like power consumption and efficiency that would not come normally into consideration for a desktop?
KDE
If there was a modern Window Maker, I would use that. I mean with a notification area and when I minimize Firefox or Chrome I don’t get five icons in the corner and it works as a Wayland compositor and supports HiDPI scaling.