Round 1: Getting in
Draw
Uzbekistan: visa-free on a passport. Since 1 February 2019 Portuguese passport holders need no visa for stays under 30 days; longer stays need a visa arranged in advance. Tajikistan: visa-free on a passport. Since 1 January 2022 Portuguese citizens are visa-exempt for stays up to 30 days and must register with the interior ministry services after entry. Both are 30 days visa-free for Portuguese citizens since the rule changes of 2019 and 2022, so the rule calls it a draw. Tajikistan still asks you to register after entry; plan for it.
Rule: Fewer hoops wins: ID card, then visa-free, then on-arrival permit, then e-visa, then consular visa.