Many of those countries listed in R30, including the US, you can buy your way in, pay a minimum amount et voila! You are a citizen. Below find country, minimum amount needed to buy in and citizenship time frame.
Portugalt250,000t3 to 8 months
Maltatt671,972t4 to 6 months
Thailandt15,902tLess than 1 month
UKt2,789,108tLess than 2 month
USt500,000t12 to 18 months
SwitzerlandttAnnual lump-sum tax payment of between 153,382 and 1,022,550 dependent on the canton of residencet2 to 6 months
Canadatt622,960t24 to 48 months
Cyprust366,433t2 months
Buying citizenship isn’t necessarily more expensive than buying residency. In the Caribbean islands Antigua and Barbuda, Grenada, St. Kitts and Nevis, and St. Lucia, citizenship can be bought from between $100,000 to $150,000. Once paid for, citizenship is issued within three to four months.
Those interested in getting citizenship from a European Union member state—and thus having the right to live and work across the bloc—will pay a lot more money. Malta offers citizenship to those who invest $1.2 million, usually after 12 months. For double that amount, Cyprus issues citizenship within three to six months.
Maltat1,221,800t12 months
Cyprust2,443,600tApproval in 3 months, passport in 6 months
Austriat9,774,400t24 to 36 months
Antigua and Barbudat100,000t3 to 4 months
Grenada 150,000t3 to 4 months
St. Kitts and Nevist150,000t3 to 4 months
St. Luciat 100,000t3 to 4 months