Embedded code
You can embed social media posts and feeds, many services provide code that you can copy and paste into a text area. This usually requires a full html text area that lets you include a script tag.
https://developers.facebook.com/docs/plugins/page-plugin
oEmbed
A web api that fetches information about an object (like a twitter post) for a given url.
Drupal has support for oembed via the media module (https://www.drupal.org/node/2966029).
Modules
https://www.drupal.org/project/socialfeed
https://www.drupal.org/project/social_timeline
https://www.drupal.org/project/socialmediafeed
https://www.drupal.org/project/social_feed_aggregator
https://www.drupal.org/project/social_feed_fetcher
https://www.drupal.org/project/social_media_content
This could give you the best results if you want to handle the content yourself. You could easily make some views after getting the content imported.
https://www.drupal.org/project/social_migration
https://www.drupal.org/project/social_feeds_block
https://www.drupal.org/project/social_media_integration
https://www.drupal.org/project/drutopia_social
https://www.drupal.org/project/instagram_api
https://www.drupal.org/project/instagram_display
https://www.drupal.org/project/instagram_posts
https://www.drupal.org/project/feeds_instagram
Simple. Only shows the images, which link to the instagram post.
https://www.drupal.org/project/instagram_without_api
https://www.drupal.org/project/instawidget
https://www.drupal.org/project/simple_instagram_feed
https://www.drupal.org/project/elfsight_instagram_widget
https://www.drupal.org/project/instagram_importer
https://www.drupal.org/project/instagram_formatter
https://www.drupal.org/project/instafeedjs
Not sure if this one still works.
https://www.drupal.org/project/twitter_block
https://www.drupal.org/project/facebookoembed
https://www.drupal.org/project/youtube_block
https://www.drupal.org/project/ckeditor_media_oembed_plugin
https://www.drupal.org/project/ckeditor_oembed
https://www.drupal.org/project/media_entity_instagram
https://www.drupal.org/project/media_entity_twitter
https://www.drupal.org/project/media_entity_facebook
https://www.drupal.org/project/url_embed