Anything sold or produced by these:
Amazon - Monopoly and poor treatment of workers.
Apple - Greedy and consumer infriendly.
Huwawei - Stolen soft and hardware.
Nestlé - "Water shouldn't be a human right".
Unilever - Palm tree devestation among others.
Starbucks - Poor treatment of workers.
Any brazillian beef - Rainforest devistation (locals aswell).
There are many unethical companies and the list is long, but these are the brands/products available to me that I avoid as much as possible. There's also the oil companies like Shell, Exxon, BP an so.
I'm a big fan of workers unions and treating adulst and kids humane. Also our climate system.