@ghdprentice @grislybutter are spot on. It’s a chain that works together, and the weakest link is what you’ll hear once once the clarity reaches a high level. Patience, synergy, research, and lots of listening when you make changes is your best bet IMO. It’s also good to optimize what you have by isolation and preventing vibration and resonances as much as is feasible, suitable cables and wires, etc.
I don’t buy enough expensive equipment to make any specific recommendations, but I trust the advice above. It’s always subjective and personal, but IMO this is a good time to at least consider taking a step towards tubes to get a taste, and set yourself up for possible future upgrades in that direction if you happen to become enamored like many do.