These are mostly digital stage pianos, but you might want to take a look at them. Huh I own a Roland RD-700SX (with granded hammer action) which acceptably imitates piano hammer action, better then most digital pianos, or any cheap upright/grand. The touch and keyboard action reminds me of a Steinway. However, probably the best digital piano
on the market is the Clavia Nord Stage 88 (though I'm not so sure about the keyboard action).
Yamaha P-70/70S ......................................................................600$
https://www.yamahasynth.com/products/p70/specifications.htmlYamaha P-80 (MIPA) ……………………………………….1100$
Yamaha P-90 ………………………………………………900$
https://www.yamahasynth.com/products/p90/specifications.htmlYamaha P-120/120S .............................................................
https://www.yamahasynth.com/products/p120/specifications.htmlYamaha P-140/140S ……………………………………………1200$
https://www.yamahasynth.com/products/p140/specifications.htmlYamaha CP300 .......................................................2200$
https://www.yamahasynth.com/products/cp300/index.htmlYamaha P250 (MIPA)..........................................................2000$
https://www.yamaha.com/yamahavgn/CDA/ContentDetail/ModelSeriesDetail/0,,CNTID%253D15249%2526CTID%253D205800%2526ATRID%253D20%2526DETYP%253DATTRIBUTE,00.htmlKawai ES4 ..............................................................1800$
https://www.kawaius.com/main_links/digital/es_4spec.htmlKawai CA-X ...........................................................
https://www.kawaius.com/main_links/digital/ca_x/ca_xspec.htmlKawai MP4 .............................................................1100$
https://www.kawaius.com/main_links/digital/mp_4spec.htmlKawai MP8 .............................................................2000$
https://www.kawaius.com/main_links/digital/mp_8spec.htmlRoland FP2 ..............................................................1300$
https://www.roland.com/products/en/FP-2/specs.htmlRoland FP-5 ............................................................1500$
https://www.roland.com/products/en/FP-5/specs.htmlRoland RD-170 …………………………………………………………….900$
https://www.roland.com/products/en/RD-170/specs.htmlRoland RD700SX ....................................................2200$ 1800$
https://www.roland.com/products/en/RD-700SX/specs.htmlRoland RD700 (MIPA)........................................................ 1500-1800$
https://www.roland.com/products/en/RD-700/specs.htmlKurzweil SP88X .....................................................900$
https://www.kurzweilmusicsystems.com/products.html?Id=356Kurzweil K2600X(S) ..............................................2800$
https://www.kurzweilmusicsystems.com/products.html?Id=351Korg SP250 .............................................................900$
https://www.korg.com/gear/info.asp?a_prod_no=SP250&category_id=1Korg SP500 .............................................................1300$
https://www.korg.com/gear/info.asp?a_prod_no=SP500&category_id=1Korg Triton Extreme 88 (MIPA)………………………………………………….2300$
https://72.14.221.104/search?q=cache:WstyAJgtyJUJ:www.zzounds.com/item--KORTRITEX88+korg+triton+88+price&hl=ro&gl=ro&ct=clnk&cd=1Korg Oasys (MIPA)…………………………………………………………………10000$
https://www.korg.com/gear/prod_info.asp?A_PROD_NO=OASYSClavia Nord Stage 88 (MIPA)..............................................3300$
https://www.clavia.se/products/nordstage/technical.htmCasio Privia Px300 (hammer action)………………………………….700$
https://www.priviapiano.com/products/PX-300/content/tech_specs/Casio Privia Px310 ……………………………………………..700$
https://www.priviapiano.com/products/PX-310/content/tech_specs/There is also a very good software piano: the Sythogy Ivory. Very good dynamics, but it costs some money, since you need a PC/laptop, a digital piano with a good keyboard action (piano-like: something like the Roland RD-700SX), and the software itself. Listen!
https://www.synthogy.com/pages/audio.htmlThis is the closest digital technology got to the sound of a real piano. And it really is darn close (together with the Clavia Nord Stage 88)! You can compare them yourself.