The ornamental design for a 5-tier organizer, as shown and described.
FIG. 1 is a top perspective view of a 5-tier organizer showing the new design;
FIG. 2 is a top plan view of the design shown in FIG. 1;
FIG. 3 is a front elevation view of the design shown in FIG. 1;
FIG. 4 is a right side elevation view of the design shown in FIG. 1 (the left side elevation view of the design is a mirror image of the view shown in FIG. 4);
FIG. 5 is a rear elevation view of the design shown in FIG. 1;
FIG. 6 is a bottom plan view of the design shown in FIG. 1; and,
FIG. 7 is a cross-section view of the design shown in FIG. 1 taken along line 7-7 in FIG. 3.
The features shown in broken lines depict environmental subject matter and form no part of the claimed design.