Can you tell us what type of goods you will be selling? Will you likely be in competition with other (Spanish) market traders?
Unless you will be selling almost exclusively to the Expats you may also find that the Town Hall will only issue licences if you speak Spanish.
I cannot imagine anyone at any of our local markets who couldn't speak Spanish.
Here is a list of the markets in the Alicante area by day of week
Monday
Callosa d'En Sarria, Dénia, Elche (Plaza de la fruta, Plaza de Barcelona and Plaza de Sant Josep), Ibi, Monovar, Petrer, Santa Pola, La Nucia
Tuesday
Altea (farm produce), Aspe, Benidorm (farm produce), Elda. Jijona, Orihuela, Pilar de Horardada (Mil Palmeras).
Wednesday
Alcoy, Banereres, Benejama, Benidorm, Callosa de Segura, Campello, Guardamar del Segura, Muchamiel, Novelda, Ondara, Petrer, Sax, Teulada, Polop de la Marina (farm produce).
Thursday
Alicante, Agost, Albatera, Castilla, Cocentania, Jávea, Pego, Rojales, Villajoyosa, Villena.
Friday
Alfaz del Pi, Azafara, Crevillente, Dénia (Rastro), Delores, Finestrat, Gata de Gorgos, Moraira, Muro de Alcoy, Monforte del Cid, Pilar de Horadada, La Nucia, Onil, Vergel and Torrevieja.
Saturday
Alcoy, Alicante, Almoradí, Benejuzar, Benejama, Benissa, Calpe, Castalla, Cocentaina, Elche (Plaza de la fruta, Plaza de Barcelona and Plaza de Sant Josep: Plaza del Raval has a handicrafts markets), Elda, Novelda, Pinoso, Pedreguer, San Juan, San Vincente, Sax, Santa Pola and Jálon (Rastro).
Sunday
Aguas de Busot, Benidorm (Rastro), Busot, Elche (Plaza del Raval handicrafts market), La Alguena, La Matanza, La Murada de los Vicentes, La Nucia (Rastro), Pedreguer (Rastro) and Torremanzanas.