Best place is this: https://www.amazon.co.uk/Oh-Youre-So-Silent-Jens/dp/B000BKUX06 although it’s not on Spotify if you were intending to stream. It’s a compilation of his early EP’s and some b-sides and assorted tracks. Remains his best work.
Failing that get stuck in with Night Falls Over Kortedala and then the Argument With Myself EP and then When I Said I Wanted To Be Your Dog. The latter’s his debut and, as such, is a bit patchy but contains many awesome songs. The new one (Life Will See You Now) is also brilliant.
Pretty sure I’ve just accidentally recommended listening to pretty much all of it but do try and get hold of You’re So Silent first.