I think I understand your question so here goes
Caithness- Highlands and Islands
Highland - H & I
Orkney - H & I
Sutherland - H & I
Borders - Lothian Borders and Fife
Central Scotland - Big area so could be Glasgow or Forth valley
Dumfries & Galloway - South and West
Fife - North and East
Grampian - North and East
lanarkshire - Glasgow and North Clyde
Lothian - Lothian Borders and Forth Valley
Strathclyde - South and West
Tayside - North and East
Strange question and dubious categories since Strathclyde also covers some islands and all of Glasgow
Hope this helps though