ways to listen to music offline

i'm looking into the ways i can comfortably listen to stuff offline just because it's free and i can have whatever stuff that i want

long time ago i used mp3 players (just random cheap ones) and i just had one folder for all the songs that i liked

now i kinda listen to LOTS of stuff and most of the time i listen to whole albums. still have a playist for random stuff though

my current little system is to just have it on my phone + aimp. i don't know if there's better apps that's just what i'm used to haha. i like how i can just make a playlist for an artist and have little dividers for albums

like this ->

i know i can just go into 'my music' tab and have all of the artist's albums from here but it's not as convenient as playlists (you just have to navigate more menus this way)

the problem is - phone storage is limited and my music folder is already 30+gb and it's mostly just one artist!!!

so i thought for a moment and got an idea to just host the files on my pc since i already have them on it + there's LOTS of storage. also i had some plans to set up a jellyfin server for anime before that so i just got to it

and while i liked jellyfin for watching stuff their app is not that convenient for music

so i tried another apps that can use jellyfin servers and i didn't like any of the free ones :(

saw some people recommend symfonium and i liked it pretty well BUT it's a paid app and while it's not that expensive i simply can't buy it since i can't pay for anything outside of russia >:( and cracked versions doesn't seem to work for me

so maybe i need to do research on more ways to host music conveniently on my local server

OR

i was thinking of just buying another player thingy. not a cheaper one since most of my stuff is flac and i need quality + bluetooth + lots of storage (128gb maybe?)

new stuff is out immediately since i can't afford it so i'm looking for used things but i don't know what to get yet... so yeah