Listening to EVERYTHING is perhaps a good idea at first but impossible for most anyway... Your room and needs will determine the type of speakers... And a speakers set dont sound the same in different room coupled with different components anyway...
Read about the way to embed any system and any component optimally in the electrical, mechanical and acoustical working dimensions... Begin with what you own now ...Dont upgrade if not necessary or if you dont know how to upgrade anyway , study and experiment...
Learn, study acoustic concepts , experiment with fun or pay for an endless rabbit hole of obsessions for a dreamed "perfection" ...
This hobby is about music learning and acoustic experiments more than about upgrades and money...