Instead of Twitter, use Gab:
https://gab.com/

Instead of Whatsapp or Snapchat, use Signal, Jami or Telegram:
https://www.signal.org/
https://jami.net/
https://telegram.org/

Instead of Discord, use Matrix or Rocketchat:
https://element.io/
https://rocket.chat/

Instead of Facebook, use Minds:
https://www.minds.com/

Instead of Instagram, use PixelFed:
https://pixelfed.org/

Instead of Chrome/Firefox, use Ungoogled Chromium:
https://chromium.woolyss.com/
Bromite for Android: https://www.bromite.org/

Essential Browser addons:
https://ublockorigin.com/
https://decentraleyes.org/

Instead of Gmail, use Tutanota/Mailfence:
https://mailfence.com/

Instead of Youtube, use Hooktube:
https://hooktube.com/

Instead of Windows/Mac, use Linux:
https://distrowatch.com/

Instead of iOS/Android, use LineageOS or GrapheneOS:
https://lineageos.org/
https://grapheneos.org/
and use MicroG: https://lineage.microg.org/

Last line of defence:
https://www.torproject.org/
https://freenetproject.org/
https://geti2p.net/en/