Tea. I don't like coffee but I don't hate it either. My favorite types of tea are chai and earl grey. I like black and white tea but green is too bitter for me. I also love boba and milk tea.
The original is already enough, as it represents the whole LGBTQ+ community. If people keep adding colors, soon we'll just have a jumble of stripes that is ugly and trying too hard to be inclusive when that is what the original does.