The reMarkable 2 tablet! As long as you don't expect it to do more than what it's designed for, I've been loving using it and it's helped me enjoy writing a lot more.
I have it on the side while I work to take meeting notes and then email them to myself, or use it as aid to explain designs/ideas visually.
I sketch blog posts for my blog on it. It has pushed me to write end-to-end without distractions because there's no browser tab to check. I also don't end up finding existing blog posts and ending up demotivated.
I download sheet music from imslp and put it on the tablet, I study and annotate the sheet music and use the tablet to read on the piano.