You could try this one
https://justuscoffee.com/store/product/earl-grey-carton
Bought it a
Ten Thousand Villages (fair trade retail shop of your local Mennonite Central Committee) more than a few years ago. So strong that I have to dilute it. Just took a sniff of it (it's almost 5 years past its besy-by date) and still smell very strongly of bergamot.
Caveat: mine is loose leaf (never buy bagged tea and hardly drink it) and it seems it's only sold in bags these days.