[Solved]-offset long series labels with lines-Highcharts

You can use annotations with connector shape type.

  annotations: [{
    labelOptions: {
      shape: 'connector',
      ...,
    },
    labels: [{
      point: 'BE',
      y: -80
    }, ...]
  }]

Live demo: https://jsfiddle.net/BlackLabel/58xrhuvz/

API Reference: https://api.highcharts.com/highcharts/annotations

Docs: https://www.highcharts.com/docs/advanced-chart-features/annotations-module