There are two schools of thinking. Speakers first or Source first. From 30 years experience with different systems there is not only one way to do it. I tried both approaches but I got best results starting with speakers. Matching it to the sound I like and the room I have.
I started upgrading my current system 4 years ago with new speakers after moving in a new home. I just completed the system upgrade this month with a new cartridge. This is the last piece of the puzzle after I upgraded the preamp, amp, turntable and cables in that order. My system in now well balanced. I can now start over again…just kidding!
HiFi Huff on YouTube says that you should invest as much as 50% of your system on speakers.
good luck and keep us posted on your choices.