Essex linen by Robert Kaufman is a great fabric for embroidery. It has a lovely texture and a bit of body.
Sold in fat quarter units (50x54cm). If you need larger, by ordering 2 fat quarters you will get 50x108cm, 4 fat quarters will be 100x108cm etc.
Content: 55% linen, 45% cotton.
Please note, this isn't an evenweave fabric so it wouldn't be ideal for counted stitching like cross stitch. The Zweigart linens are perfect for that.