I like the national retail sales tax, coupled with the repeal of the income tax. (Linder Fair Tax)
I wouldn’t mind any of them so long as they pick ONE and only one.
The Europeans have taxes on everything: Income, Sales, Value-added, being alive, walking down the street, driving down the street, riding a bicycle down the street, looking out the windows down the street, etc., etc...
A great deal of them take up Schwartz Arbeiten, or black work. This means they do stuff for cold cash only, like fix up a house, paint walls, fix a car, cook food, etc. No tax on cash!