I've tried out a bunch, but at the moment I've mainly been playing around with hyprland, cause it's also a dynamic tiler and im used to that layout now
The main advantage to me tbh is that certain windows don't overflow the assigned tile space like in pop-shell (this is also fixed in cosmic), but there are other things like having all your move/resize actions on the main mod layer instead of needing to enter adjust mode (super + enter is the default keybind on pop-shell), and the fact it uses wayland instead of x11
Of course there are also things that can be downsides depending on how you see it, like the fact it's a TWM not a desktop, which means if you want to adjust any setting you'll need to manually adjust config files, and that it doesn't come with things like a top bar or app launcher etc. So it can take a while to get up and running