Here's the US Spotify year-end that i've been compiling throughout the year. It tracks from Jan 1 to Dec 31 2020 and tracks songs when in the top 100 to be consistent with billboard (and to make the work easier for me), All songs with remixes are combined original and remix, except for What's Poppin and Savage as the remixes of those songs are very different from the original. I'll also work on 2019, 2018, and 2017 at some point and maybe I'll combine the year-ends in their own thread. Also, Juice Wrld appears 13 (!!!) times.
1. The Box - Roddy Ricch 406,821,964
2. Blinding Lights - The Weeknd 335,767,577
3. Blueberry Faygo - Lil Mosey 280,136,348
4. Rockstar - DaBaby, Roddy Ricch 276,588,114
5. Life Is Good - Future, Drake 258,458,552
6. Circles - Post Malone 216,282,576
7. WAP - Cardi B, Megan Thee Stallion 200,800.495
8. Roxanne - Arizona Zervas 183,399,357
9. Watermelon Sugar - Harry Styles 176,556,038
10. Sunflower - Post Malone, Swae Lee 170,120,003
11. Lucid Dreams - Juice Wrld 169,805,436
12. Say So - Doja Cat 168,557,200
13. What's Poppin (original) - Jack Harlow 168,282,969
14. Adore You - Harry Styles 166,982,893
15. Falling - Trevor Daniel 165,674,915
16. For the Night - Pop Smoke, Lil Baby, DaBaby 161,400,821
17. Mood - 24kGoldn, Iann Dior 160,210,594
18. Roses - Saint Jhn, Imanbek 156,694,424
19. Someone You Loved - Lewis Capaldi 156,684,314
20. Intentions - Justin Bieber, Quavo 156,617,352
21. Robbery - Juice Wrld 154,104,677
22. Death Bed - Powfu 152,750,497
23. Toosie Slide - Drake 149,939,252
24. Suicidal - YNW Melly 149,066,002
25. Highest in the Room - Travis Scott 148,733,423
26. Don't Start Now - Dua Lipa 147,795,700
27. Ballin - Mustard, Roddy Ricch 144,755,788
28. All Girls Are the Same - Juice Wrld 143,984,070
29. Sunday Best - Surfaces 142,675,238
30. Laugh Now Cry Later - Drake, Lil Durk 141,748,325
31. Wishing Well - Juice Wrld 141,423,677
32. Lemonade - Internet Money, Don Toliver, Nav, Gunna 141,175,378
33. Hot Girl Bummer - Blackbear 140,146,801
34. Come & Go - Juice Wrld, Marshmello 139,351,593
35. What's Poppin Remix - Jack Harlow, DaBaby, Tory Lanez, Lil Wayne 138,591,997
36. High Fashion - Roddy Ricch, Mustard 136,048,229
37. Bandit - Juice Wrld, NBA Youngboy 134,849,630
38. Party Girl - StaySolidRocky 133,160,096
39. The Scotts - Travis Scott, Kid Cudi 130,457,175
40. Godzilla - Eminem, Juice Wrld 127,069,991
41. Bop - DaBaby 120,317,117
42. Righteous - Juice Wrld 116,986,418
43. Dance Monkey - Tones & I 116,631,359
44. Before You Go - Lewis Capaldi 115,116,715
45. Everything I Wanted - Billie Eilish 110,477,370
46. After Party - Don Toliver 105,327,336
47. Walk Em Down - NLE Choppa, Roddy Ricch 100,112,551
48. Heather - Conan Gray 90,769,148
49. Goosebumps - Travis Scott, Kendrick Lamar 90,703,992
50. Savage Love - Jason Derulo, Jawsh 685 89,815,789
51. Savage Remix - Megan Thee Stallion, Beyonce 88,311,575
52. Popstar - DJ Khaled, Drake 87,006,410
53. Go - The Kid Laroi, Juice Wrld 81,940,246
54. Rain on Me - Lady Gaga, Ariana Grande 81,515,309
55. If the World Was Ending - JP Saxe, Julia Michaels 81,370,857
56. Supalonely - Benee, Gus Dapperton 80,972,173
57. Out West - Travis Scott, Young Thug 79,038,892
58. Mood Swings - Pop Smoke, Lil Tjay 78,473,697
59. What You Know Bout Love - Pop Smoke 78,414,819
60. Positions - Ariana Grande 78,108,567
61. Dollaz on My Head - Gunna, Young Thug 76,734,109
62. Ransom - Lil Tecca 74,556,135
63. We Paid - Lil Baby, 42 Dugg 74,446,836
64. Go Crazy - Chris Brown, Young Thug 74,308,767
65. Dynamite - BTS 73,645,650
66. The Woo - Pop Smoke, Roddy Ricch, 50 Cent 73,361,671
67. Rags2Riches - Rod Wave 72,946,406
68. Woah - Lil Baby 72,519,533
69. Break My Heart - Dua Lipa 72,050,827
70. Sicko Mode - Travis Scott, Drake 70,652,949
71. That Way - Lil Uzi Vert 70,259,333
72. P2 - Lil Uzi Vert 69,478,653
73. Whiskey Glasses - Morgan Wallen 68,929,437
74. Futsal Shuffle 2020 - Lil Uzi Vert 67.703,131
75. 10,000 Hours - Dan + Shay, Justin Bieber 67,126,523
76. Chicago Freestyle - Drake, Giveon 66,859,664
77. You Broke Me First - Tate McRae 66,834,513
78. Bad Guy - Billie Eilish 66,797,606
79. Jocelyn Flores - Xxxtentacion 65,853,674
80. Conversations - Juice Wrld 65,680,334
81. Myron - Lil Uzi Vert 65,238,493
82. My Ex's Best Friend - Machine Gun Kelly, Blackbear 65,222,192
83. You Should Be Sad - Halsey 64,729,660
84. Hate the Other Side - Juice Wrld, Marshmello, Polo G, The Kid Laroi 64,611,593
85. Smile - Juice Wrld, The Weeknd 63,370,842
86. My Oh My - Camila Cabello, DaBaby 62,862,162
87. Money In The Grave - Drake, Rick Ross 62,734,419
88. Heartless - The Weeknd 62,663,133
89. Dakiti - Bad Bunny, Jhay Cortez 60,685,361
90. Holy - Justin Bieber, Chance the Rapper 60,109,671
91. 7 Summers - Morgan Wallen 59,838,239
92. 21 - Polo G 59,758,666
93. Toes - DaBaby, Lil Baby, Moneybagg Yo 58,749,474
94. Dior - Pop Smoke 58,468,829
95. Stuck With U - Ariana Grande, Justin Bieber 58,333,813
96. Yummy - Justin Bieber 58,279,735
97. Sugar - Brockhampton 58,174,648
98. Flex - Polo G, Juice Wrld 58,121,636
99. Be Like That - Kane Brown, Khalid, Swae Lee 57,331,677
100. Savage (original) - Megan Thee Stallion 57,162,978