Recommended are above all products by Clairefontaine, whose paper is well sized and also suitable for nibs with strong ink flow and is offered at fair prices. An alternative within the Moleskine world is the Folio collection, whose thicker, presumably acid-free paper bleeds through significantly less and is thus better suited for archiving. Generally, it is recommended to test several paper types, since suitability depends strongly on the respective nib-ink combination.