Easiest and cheapest countries for acquiring European Union residency

Portugal

it is a sovereign state located on the Iberian Peninsula in southwestern Europe. It is the westernmost country of mainland Europe, being bordered to the west and south by the Atlantic Ocean and to the north and east by Spain. The Portugal–Spain border is 1,214 kilometres (754 miles) long, making it the longest uninterrupted border within the European Union. The republic also includes