I use an iPod that I've modded 128gb into. It's great. All the convenience of my own high quality music library, without having hundreds of CDs around.
My phone is 512gb and i use about 80 myself, largest part is porn(yeah i'm aware, it's bad...very bad,i need some time).
I've decided to start pirating again as my device has plenty of space to keep my music.
The biggest thing is getting all lf the music, so nowadays i'll just play what i have and sometimes go: "oh damn i forgot about billie eilish" for example and make a mental note until the next time i'm at my computer with some time to spare.
Slowly but steadily decreasing my porn stock and replacing it with music i would've bought as cd's.