10 MNC's that might use algorithms to manipulate you:

1. Amazon knows what kind of things you buy and they will show you that ads.
2. Facebook may know that you like to travel and then bombard with travel ads.
3. Youtube knows how long your attention span is for different type of content.
4. Tiktok might know what you like most- porn or talent.
5. Instagram knows that you look up to celebrities more than you care about your friends
6. Google know your overall personality .
7. Swiggy/Ubereats might know the common time when you order and what you order. They know that you like sweets or spicy food. 
8. Uber knows that you might be an impatient person who constanlty checks the position of driver after every 1 minute.
9. Twitter might your political inclination.
10. Finance companies can use your monthly spendings to sell you appropriate credit cards/loans.
11. Quora knows that even in reading, what kind of content you like to read?
12. Music streaming companies know what kind of music you like and they can order a ai robot to produce that kind of music.