Get the “Blackbox” or better the “tangerine nanobox” from 1010music. Its an awesome hardware sampler, that also does multisamples.

Meaning u can record each or multiple keys of a real piano, and then play them with the midikeyboard of your choice, like keystep.
Luckily both samplers come with multisample libraries already on them, plus there are many more if not infinite in the net.

In doesnt get any better then this.

Except you buy a nord piano or something😄