I specifically bought into the Nespresso ecosystem after swearing off k cups based on some of the same research. I don't really have access to composting so this is the best solution available to me.
Nespresso gives you either a return to store or a pre labeled UPS return bag each time you buy pods. I now own two machines and take one with me on longer road trips.
Nespresso is also trialing a coffee pod made from coffee that is completely compostable. I wish more products were designed this well and I wish plastic K cups would get the ban they deserve.
So yes, I know that Nespresso is owned by and benefits Nestle. But I also know that Nespresso has high ethical standards that are demonstrated in their commitment to sustainability from farm to recycling.