> I have had a quick look and I can’t find a definitive list of must listen-tos.

Well yeah, that's the thing about tastes. Everyone's are different.

It's not hard to find lists of favorite artists. Why not do a little research, discover which ones you like?

For instance, everyone would tell you Sonic Youth's Daydream Nation is the one to listen to. But I'd tell you Sister, or The Eternal.

There is no definitive list. It's subjective. Find your own way.