You might want to check out the Yamaha P-125 or the Roland FP-30X. Both are fantastic for portability and have a reputation for mighty weighted key action that mimics an acoustic piano pretty closely. They're not too heavy, making them ideal for travel. Sound quality is top-notch in both, with the Roland slightly edging out with its rich tones thanks to its SuperNATURAL sound technology. Plus, they both come with useful features like built-in metronomes and recording capabilities, which can be super handy during practice sessions or performances.