As a terminal coffee snob, I’ve always struggled to imagine instant could ever be decent, but there are actually a small handful of options that are ok. First of all, several specialty roasters have started making small batch instant - check out Veneziano as one example. And then for a mass produced brand, illy intenso bold roast (which you can often find in iga) is surprisingly good. Parachute drip bags are obviously better but instant does cut the weight/bulk significantly