Tube recommendations are subjective. For example I build a DHT DAC. We used NOS tubes which are getting hard to find these days. But no being new tubes, I could not sell the product retail. We tried Chinese DHT tubes which in the beginning were just OK. Then we measured the specs and adjusted the voltage and then everything snapped into place. For the noise, as suggested above, try to isolate to see what the cause is from. Basic transformer noise try to cover the transformer or shield the AC cables.
Happy Listening