Short answer
Many people find Portugal offers a good quality of life, safety and milder costs than much of Western Europe, though wages are lower. To live there you generally need a visa or residence permit (unless you are an EU/EEA citizen), a NIF, and proof of accommodation and income. Rules change, so confirm your specific case with the Portuguese immigration agency (AIMA) or a consulate.
General information, not legal or tax advice. Rules and amounts change: confirm with official sources.
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