Sibling commenters are correct, I think a static site generators are the gold standard, since you'll be able to curate the feed to the way you usually post. Judging by your interest in aggregating, it seems Gatsby may be a fit:
Gatsby allows aggregating sources, e.g. https://www.gatsbyjs.com/plugins/gatsby-source-twitter/, https://www.gatsbyjs.com/plugins/gatsby-source-instagram/, https://www.gatsbyjs.com/plugins/gatsby-source-medium/
From scratch, I created a CV that aggregates all my GitHub stuff and hard codes the rest:
v1: https://cv.git-pull.com, https://github.com/tony/cv/tree/v1/react
v2: https://cv-react-v2.git-pull.com, https://github.com/tony/cv
https://www.instagram.com/successbykim/
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