I don't think country matters much -- and would you really move there if it did?? If country does matter, it probably would have more to do with the friendliness/openness of the people, rather than their size and strength. (Friendlier people = More likely they would be open to lifting you).
But, if location matters to you, try a fitness expo. Or a logrolling competition. Or a women's soccer game. Or a farm.