Was the Body of Christ foreshadowed or previewed in the Old Testament types?

No, the Body of Christ was not foreshadowed or previewed in Old Testament types. While the cross and resurrection had previews in the types, the Body of Christ itself did not. Colossians 2:17 calls those things a shadow, but the Body is of Christ.

Les teaches that the Old Testament types and shadows, including the Law's regulations about meat, drink, holy days, new moons, and sabbaths, pointed to the cross and resurrection, but not to the Body of Christ. He says, 'I don't think the Body of Christ even had the preview in the types in the Old Testament. The cross did, His resurrection, but I don't think the Body.' Colossians 2:17 calls those things a shadow of things to come, but the Body is of Christ. So the Body of Christ was not foreshadowed in the Old Testament types.

Colossians 2:17

Which are a shadow of things to come; but the body is of Christ.

What does it mean that the Old Testament things were a shadow but the Body is of Christ?

The Old Testament regulations—meat, drink, holy days, new moons, Sabbaths—were only a shadow, a preview of things to come. Christ satisfied the Law, blotted out the handwriting of ordinances, and nailed it to His cross. The Body is of Christ, meaning its reality and head is Christ, not the Old Testament shadow.