You haven't lived until you've eaten real vindaloo...
When I lived in Manly (Sydney's Northern Beaches) I was spoilt because we had fantastic Indian restaurant (and a lot of pubs) called Ashiana which does a great goat curry but I nearly always went for a Mirchi Masala. This is a chicken dish which they cook to the temperature you ask. Hot makes a Vindaloo seem very mild; Very Hot is pretty much as the video clip but you can still taste everything; sublime.
Living in London I was pretty spoilt for choice for most regional variations but in Wapping our local 'Indian' was openly a Bangladeshi Restaurant (most Indian's in England are...) with an absolutely amazing menu (but for people who expected standard Indian Restaurant menus they would cook anything asked for). Interestingly they also took over the Fish and Chip shop next door (which two owners previously - Greek Cypriots if I remember correctly - was really good then went downhill rapidly under new mismanagement. Once the son of the Bangladeshi family took it over I would rate it as the best Fish and Chip shop in London. This family new food!).
Once went to an Indian in Heidelberg (generally best avoid Indian Restaurants in Germany, Austria and Switzerland because they generally seem to tone down the spices to bland). Anyway, as we were studying the menu in that unreadable Gothic script that German restaurants all seem to use the waiter realised we were all English (I didn't bother correcting him
) and said "Forget the menu; you won't like it as it's very bland, but our chef is from Birmingham so just let me know what you want and he'll cook it. Best curry I've ever had in a German speaking country! (Yes, I know German food is good too and I know a couple of good restaurants in Heidelburg but we'd been at a conference all week and rather fancied a curry.)
Finally, the Inner London Education Authority used (probably still do but I haven't lived there for 10 years) to run evening classes: academic, vocational, hobbyist, fitness, just about everything. For one year I went to Indian Cookery classes once a week in a local secondary school run by a local Indian grandmother. Really good teacher except she only new how to cook for a very large family so the amounts we made were enormous (but really tasty).
There is an Indian Restaurant only a couple of km from where I live now but the lockdown means I haven't had a chance to try it out.