If you are looking for Dragon Ball manga or anime in Spanish, these are the primary legal sources:
, a young Goku Jr. goes on a journey to find a Dragon Ball to heal his sick grandmother, Pan. Gohan’s Heritage comic xx dragon ball visitando a la abuela completo verified
Because "Comic XX" is often a search term added to fan content to indicate adult or mature themes (or simply a clickbait prefix), and specific fan-comics are rarely officially indexed, finding the "verified" complete version can be difficult. Goku Visita a la Abuela official and verified