As a long-time LP owner (I've owned some of my 3000 LP's for more than 30 years), I've found that just about any storage device is fine, PROVIDED it keeps the LP's upright, and allows the LP's to be stored firmly next to each other, but not tightly. I use a pair of inexpensive book cases that work fine.
Bear in mind that vinyl is a viscous material that will, over an extended period, warp or slump at the edge if the LP is not kept upright, so be sure that your LP's do not lean away from the perpendicular, or get a curvature in the jacket. If there is room at the end of shelf, use a bookend or solid item to fill the space so the LP's don't lean over. Boxed sets are usually best stored lying flat, since there is usually enough room inside the box to let the LP's "slump" a bit.
Bear in mind that vinyl is a viscous material that will, over an extended period, warp or slump at the edge if the LP is not kept upright, so be sure that your LP's do not lean away from the perpendicular, or get a curvature in the jacket. If there is room at the end of shelf, use a bookend or solid item to fill the space so the LP's don't lean over. Boxed sets are usually best stored lying flat, since there is usually enough room inside the box to let the LP's "slump" a bit.