Although I can’t say if they sound like Ohm speakers, I think these Hifiman Organic ‘phones tick all the boxes you listed and are fairly easy to drive so should be ok initially with your preamp’s headphone output. Here’s a review that does a nice job describing their sound characteristics, and as they’re available through Amazon you can likely easily return them if they don’t work out. Just another potential option, and best of luck.
https://soundnews.net/reviews/headphones/hifiman-arya-organic-review-comparison/
https://www.amazon.com/HIFIMAN-Arya-Organic-Full-Size-Audiophiles/dp/B0C5RFXMM5