You have to let us know several things, like your budget,synth,or aranger. Is it for home use only ? Built in speakers ? What kind of music do you play ? Used, or new ?
Welcome. There is all kinds of help here and on the General Arranger forum, depending on what type of keyboard you need.
pa4X 76 ,Audya 76,Yamaha S970 , vArranger, Hammond SK1, Ketron SD40, Centerpoint Space Station, Bose compact