This scheme does not need a list, and if necessary could be simplified enough, some common part with first three letters of the site:
- For Instagram: my-memorable-password-Ins
- For Facebook: my-memorable-password-Fac
The memorable part could be the initials of a favorite song lyric, or something: nggyunglydIns, nggyunglydFac etc.
But the suggestion of using the Chrome password manager sounds like it will be seamless. I don’t know if it would work on IOS, but on Android it fills passwords in for many apps, not just web pages.
8610 Writing the digits in descending order is the best way to write any number.