Greasy Fork is available in English.
Add a "🔎 iTunes Artwork Finder" button to Apple Music album pages. Clicking this button will capture the Album and Artist info from the page to the clipboard and open https://bendodson.com/projects/itunes-artwork-finder/, where you can paste the contents of the clipboard to search for high resolution album/cover art. Make sure to change the selectors for the "format" and "country" on iTAF to optimize your results!