These are not from my research but I have collected them from someone who got placed in Amazon.
<< I don't know if I can name her >>. I have been following her from past month and she posting good content on interviews.

LC Questions
1.Trapping Rain Water
2.Spiral Matrix
3.Jump Game (I and II)
4.Largest sum contiguous array
5.Seach in rotated search array
6.Best time to buy and sell stock.
7.3 sum
8.First missing integer.

G__F__G questions

1. search in row wise and column wise sorted matrix
2. Rearrange array in alternating positive and negative items with O(1) space.

(Most of the questions can be solved using DP and Greedy algorithms).

If it has been helpful and if even some of the people here want me to regularly post questions on other data structure, then help me out.