| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| best sci fi books 21st century | 0.06 | 0.7 | 62 | 38 |
| best science fiction books 21st century | 0.84 | 0.7 | 1656 | 100 |
| best sci fi movies 21st century | 1.34 | 0.9 | 3326 | 50 |
| best sci fi writers 21st century | 1.29 | 0.3 | 9171 | 32 |
| best science fiction 21st century | 0.9 | 0.7 | 3383 | 59 |
| best science fiction novels 21st century | 0.3 | 0.5 | 6214 | 9 |
| sci fi films of the 21st century | 0.62 | 0.8 | 6466 | 8 |
| best contemporary sci fi books | 1.26 | 1 | 1865 | 70 |
| best modern sci fi books | 1.96 | 0.8 | 359 | 13 |
| best sci fi books 2021 | 1.99 | 0.3 | 7889 | 52 |
| best sci fi books 2011 | 1.91 | 0.3 | 4620 | 79 |
| best current sci fi books | 1.38 | 0.9 | 725 | 5 |
| best sci fi books recent | 0.49 | 0.2 | 1652 | 49 |
| top 20 sci fi books | 1.74 | 0.3 | 2957 | 24 |
| top modern sci fi books | 1.9 | 0.7 | 4368 | 36 |
| greatest sci fi books | 0.57 | 1 | 1290 | 90 |
