ArtStation is not only the best alternative but also as a good replacement for Behance. The page is the most modern looking design community website you will find on the internet. It will support a variety of media uploads like static images, video embeds and 3D model embedding.
Probably, it is the best showcase platform for films, games, entertainment and media artists. Its grid style makes the task easy for discovering new art pieces. When you click on an art piece, its minimalist design will keep the art front and centre. This basic design philosophy also transitions well to its mobile apps. The service has apps available for both Android and iOS platform, allowing you to take your work with you on the go.