MPC live 2
Depends on whether you want ‘around the house’ portability or more generic throw in a backpack portability. Also whether you want the unit to major of synthesis or sampling.
For around the house use I think the MPC live 2 has you covered. It is perfect for the couch, wireless, the workflow is a bit quirky but only took me a few hours from getting mine (totally new to
MPCs) to get my head round the sampling, sequencing, synths etc and get going with a beat. Can be really fast and fun for sketching ideas, but also deep enough to finish them if that’s your preference. It’s a bit to big/heavy to travel with though for me.
If you need something smaller then the Novation Circuits are great fun, if a little limited (I reckon both the tracks and the rhythm together would be pretty neat set up that is still small and portable)
Alternatively - SP404mk2, Polyend Play or Tracker (plus battery pack), Model Cycles.