If you dont want to setup aqua you can use this instead
https://aqua.msm.moe/login
just make an account or something I am not too sure
https://github.com/hykilpikonna/AquaDX
is the only server I know about
to set it up is easy
install java jdk, make sure java is enabled on windows PATH
click code > download zip
extract to its own folder
go to releases and download the latest .jar, place it in the folder you extracted the previous files too
and rename it to aqua.jar
go into config folder, configure application.properties file
run start.bat