ebooks first. i'll text-to-speech it most of the times but the text being there helps so i can attach my annotations. if the book is brilliant, i'll buy a physical copy and install it in my growing library. this year though, i got a little risky and bought my first quarter of the year TBR all paper books. EXPENSIVE!
What do you use for TTS? I'm interested in both a service that'll turn a PDF into an audiobook and that reads a document line-by-line. I use Librera for the latter but the FOSS voices available on F-Droid leave a lot to be desired.