# How can I manually adjust or align the position of each legend?

How can I manually adjust the position of each line legend (and for example align these pairs)? The legends become not aligned when the text lengths are different.

legend = LineLegend[
ColorData[97, #] & /@ Range[6], {"First legend", "Second", "Third",
"Fourth", "Fifth", "Sixth"}, LegendLayout -> {"Row", 2},
Spacings -> {0.3, 2}];
Plot[{x, 2 x, 3 x, 4 x, 5 x, 6 x}, {x, 1, 10},
PlotLegends -> Placed[legend, Top]]


LegendLayout -> {"Column", 3}