I am in favor of using LXQt with compiz. Recent GitHub-LXQt discussion on this:
There were other people using compiz and
compiz appears to be generally working well with LXQt.
Openbox is outdated, but in general it works, but there are some bugs that can be worked
around. Also, picom/compton may be installed to work with LXQt (some workarounds also
required like making picom autostart with system).