Symbols

HTML

`❤`	Heavy black heart	`❤`
`✓`	Check	`✓`
`✗`	Cross	`✗`
`✘`	Ballot X	`✘`
`✕`	Multiplication X	`✕`
`©`	Copyright	`©`
`°`	Degree sign	`°`
`∞`	Infinity	`∞`
`…`	Horizontal Ellipsis	`…`
`▴`	Black triangle	`&blacktriangle;`
`◂`	Black triangle left	`&blacktriangleleft;`
`▸`	Black triangle right	`&blacktriangleright;`
`▾`	Black triangle down	`&blacktriangledown;`
`*`	Asterisk	`&ast;`

Apple specific

``	Apple Logo
`⌘`	Command (or Cmd)
`⇧`	Shift
`⌥`	Option (or Alt)
`⌃`	Control (or Ctrl)

Get more here: https://graphemica.com/