some old headphones I loved, what is similar now?

That tech has evolved into full on Electrostatic systems & NO,nothing like that for $200.00....What is available is the fantastic Planar Magnetic headphones,think Magnaplanar speakers.IMO the ABSOLUTE hands down bang for $ champ is the HiFiMan HE400i,available for $200.00(half what they cost 2 years ago) mine has faced challenges from twice as expensive Audeze LCD-2,Sennheiser HD700 & HD800(3 times more $),Grado something I forget & sent all pretenders packing!You simply can NOT get more performance for $200.00.....

For $150, I have had a good experience with the Sennheiser HD 569 headphones. While not on the same level as the Sennheiser HD 650 or HD 820, they sound very good for the price. I bought my headphones new for $150, and bought a used iFi DAC for $50 — almost a tenth of the price of a new HD 820.

Thank you much for your replies.  Your suggestions mirror what I have been looking into.  I hope you and yours are safe in your area.