Spotify to MP3

Hi all :) Could someone help me with my question? I & # 039; Looking for a legal way to capture some of my spotify playlists and transfer them to my old mp3 player. (The applications of BC do not work in my mp3 :( ) I have already done a little research, but there are many different tools and I can not decide which one is the best (and, of course, they all say they are the best). :RE ) … So, any recommendations? I would be grateful!