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Most lists like these are specific to Facebook, Twitter, or Tik Tok. Most only provide you with the minimum image size requirements and leave you wondering why your images look terrible on a larger screen. This is not like most lists!
Methodology
While every social media platform has its own quirks and complications, I have been careful to only include the most helpful sizes to make your life easier! I have used the official name for each image placement, whenever possible.
This list is not infallible, so please let me know if you find any of these specs need revising. Also, please note that all these platforms tinker with their settings on a regular basis so best practices today may be obsolete tomorrow!