Extensive and semi-extensive production based on local swine breeds such as Majorcan Black Pig, Cinta Senese, Gascon, Krškopolje and Turopolje is becoming extremely rare and on the verge of disappearing in Europe. In this context, the main aim of this study was to assess the potential feasibility of marketing strategies to act as guidelines for stakeholders along the supply chain to create and improve added value and match market demands. The sustainability of five production systems was evaluated together with 60 stakeholders representing five local swine breeds, using a World Café (WC) method combined with an Analytical Hierarchical Process (AHP). The results showed that the proposed strategies could differ slightly depending on each system, while the product strategy was a common marketing priority for most of the stakeholders and represented all the systems evaluated. Diversifying production toward quality, innovative products, enhanced standardization, and quality labeling or seals of guarantee, such as the protected geographical indication or the protected designation of origin, would contribute to the sustainability of these chains. Advertising the storytelling of the meat products and emphasizing their healthier properties were also considered as positive strategies. To this effect, promotion should involve improving knowledge of the local systems and raising the profile of the meat products via public relations (networks, web pages, food and gastronomic events, workshops and so on) in the Hotels, Restaurants and Catering (HORECA) sector, stores selling top-quality products and local food shops. Better showcasing of these products and keeping the price in the premium segment would indirectly help the primary sector. By way of conclusion, other more developed local swine systems could be strong competitors, hence it is extremely important to effectively identify and trace all autochthonous swine breed products throughout the production chain. Furthermore, the entire chain must place greater emphasis on grazing (extensive or semi-extensive), the origin of the swine and their meat products. However, of utmost importance is cooperation between farms, firms and institutions.