Maybe check out the Cambridge Audio Duo. You already have a Head amp but the Duo is very quiet and capable at a pretty incredible price for the performance. I’ve also run a TTL labs ph-01 at a point as well but the Cambridge unit will take you further. On the very budget friendly end and a great leaning experience I’d recommend briefly and laying with a cheap Rolls, it won’t be great but it’s a good leaning experience.
Personally I would hold off on more pre-amp than the Cambridge Duo until you’re ready for more cartridge, unless you can find a used DynaVector P75 (mk3 or 4) they are a great stage, though I’ve only run MC, in phono enhanced mode.
Yes, someone could spend less ultimately by spending $10k on a endgame setup now but they’d miss out on the journey and growth of the process.