Curious Tea — Discovery / Classic Monthly Subscription

Curious Tea earns the top spot because it does the discovery job properly. Each month a specialist selects single-origin and single-estate loose-leaf teas from around the world and includes proper tasting cards, so you learn as you drink rather than just receiving leaves. Crucially, you pick a Light, Dark or Mixed flavour profile, so the surprises still land within your taste — the main reason it beats a pure build-your-own plan like Postea for anyone whose priority is being introduced to new teas. Two grades cover different needs: the Discovery tier is indicatively from under £12/month for four teas at 10g each (40g total), ideal for sampling widely at low cost, while the Classic tier is indicatively from under £19/month for two teas at 50g each (100g total) for everyday drinking. UK delivery is free and the box fits through the letterbox, and you can run it monthly or quarterly and cancel at any time (cancel before the 5th to avoid that month's charge). The trade-off versus a restock plan is that you don't choose the exact teas and the Discovery pouches are deliberately small.