Ooh, this is the very post for me! I used to work in the wine trade (IWST Advanced Diploma holder right here) and am a big white wine drinker.
I will drink Picpoul until it's coming down my nose, but I appreciate that some find it a little bland.
Spanish whites are brilliant (Albariño, white Rioja etc) but there are also a lot of terrific Portuguese whites, including Vinho Verdes, which have a lovely light appley flavour and are often lower in alcohol, making them easy 'drinking' wines.
I am a HUGE white Burgundy fan, although a lot of people have been put off Chardonnay by the sort of cheap, heavily-oaked stuff that flooded the UK in the early 2000s. I used to absolutely delight in convincing the ABCs (Anything But Chardonnay) that they did actually like Chardonnay, they just hadn't met the right one yet.
I haven't even started on Austria or Germany yet...
Aldi and Lidl have absolutely splendid European wine lists and they are incredibly affordable: my go-to supermarkets for wine!
Happy to chat more (I could literally talk about this all day).