Data Structures & Algorithms Book:

1. The Algorithm Design Manual http://mimoza.marmara.edu.tr/~msakalli/cse706_12/SkienaTheAlgorithmDesignManual.pdf (YouTube lectures available too) (1 month)
2. Solutions to Algorithm Design Manual: http://www.algorist.com/algowiki/index.php/The_Algorithms_Design_Manual_(Second_Edition)

Interview Questions:

1. Data structures and algorithms made easy in Java
2. Elements of programming interview in Java - Questions
3. Cracking the coding interview -  Questions
4. GeeksForGeeks for tutorials and company specific questions (30 days) https://www.geeksforgeeks.org/practice-for-cracking-any-coding-interview/

Important Courses

1. Grokking system design interviews: https://www.educative.io/courses/grokking-the-system-design-interview
2. Grokking the Coding Interview: https://www.educative.io/courses/grokking-the-coding-interview
3. Grokking the Object-Oriented Design Interview: https://www.educative.io/courses/grokking-the-object-oriented-design-interview

Additional Reading:

1. Programming Pearls: https://learning.oreilly.com/library/view/programming-pearls-second/9780134498058/
2. Pragmatic programmer: https://learning.oreilly.com/library/view/the-pragmatic-programmer/9780135956977/f_0017.xhtml
3. Programming interviews exposed - https://learning.oreilly.com/library/view/programming-interviews-exposed/9781118283400/#toc

Which Level should I apply for in FAANG

https://www.levels.fyi/?compare=Microsoft,Amazon,Apple,Facebook,Google&track=Software%20Engineer