https://github.com/horsicq/x64dbg-Plugin-Manager
There are GUI version and console version.
Console example
x64plgmnrc.exe -G "C:\x64dbg_root" // Set root path for x64dbg
x64plgmnrc.exe -U // Update list from server
x64plgmnrc.exe -S // Show list of plugins
x64plgmnrc.exe -i x64core // Install last version of x64dbg
x64plgmnrc.exe -i AdvancedScript // install AdvancedScript