Literally all of them. Any big company is doing evil things, and I doubt there is an exception to that rule. Shop local, grocery shop at a co-op, eat local, prioritize products you know are actually made in your home country. Most importantly; just buy less. Repair the things you own, take care of them, borrow from friends. Never buy something “surprisingly cheap”.
Do not confuse any of the content you see on Snapchat as news. It is an advertisement. It is a free service and the content is highly competitive, so it must be enticing to pull you in and it has one objective: to generate revenue.
If you want news, you need to find a new platform with different incentives. Lemmy removes the profit incentive, a news website keeps the profit incentive but add transparency.
If you want to keep up with friends and they’re on Snapchat, then by all means use Snapchat, but the idea that you can use it as a platform to keep up with news is delusional.