This is one of those topics where you will get a ton of “buy what I bought” responses. Not always super helpful.
I would back up and start with your room: create an accurate diagram of your listening space with accurate dimensions, windows, doors, your speaker position, your listening position, materials, sound treatments, etc.
Then make an accurate list of your current gear with current and used market prices. Are you happy with your speakers, amp, pre, turntable, CD player, streamer, etc?
If you had to start from scratch what would your total budget be? Do you want a lean minimal box system for streaming only? How about playing from your own digital library? Do you play records? Are you into playing with computer tech? Will other people in your home be playing your system as well?
Figure this out, take your diagram and try listen to showroom systems that are in your budget. Get used to what an $$ system costs. Then audition $$$$ & $ systems above and below your budget. Only your ears will tell you where value ends and “silly money” begins. Be open to some used gear if it has a long shelf life and is reliable.
You might decide to keep all your current gear or you might decide to sell it all and start from scratch? Don’t pressure yourself. Make this a fun mission: the more you listen and the more you study the better you will feel with your money expenditure.
If you can try to listen to both analog and digital sources of the same music. Is there a difference? Some people love detailed perfect to their ears sound. Others find the same gear irritating and too clinical sounding. Again, only your ears matter!