This will join the forked processes from System Verilog Fork

join

//...
join
	$display("joined!");
	end
//..

join_none

For joining that doesn’t care about if the process completed.

join_none
	$display("everything force joins");
	end

join_any

Will join if at least one process is completed

join_any
	$display("join if once one completes");
	end