It includes a espumante from Bairrada, so the list might be useful
https://elpais.com/gastronomia/beber/2023-12-22/seis-vinos-espumosos-europeos-de-precio-moderado-para-brindar-estas-fiestas.html
CleverLibre Social is an inclusive social instance for open discussion, learning, and community. All cultures welcome. Hate speech and harassment strictly forbidden.