| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| best space opera books of all time | 1.14 | 0.1 | 2438 | 64 |
| best space opera book series of all time | 1.11 | 0.9 | 3900 | 94 |
| best new space opera books | 1.36 | 0.5 | 3895 | 56 |
| good space opera books | 0.06 | 1 | 5961 | 7 |
| best space opera audio books | 1.38 | 0.2 | 7758 | 14 |
| best space opera science fiction books | 1.01 | 0.7 | 9226 | 99 |
| best space opera series | 1.25 | 0.1 | 8252 | 82 |
| great space opera novels | 1.58 | 0.5 | 4031 | 87 |
| amazon space opera books | 1.56 | 0.3 | 582 | 59 |
| top space opera book series | 1.61 | 0.6 | 2729 | 83 |
| space opera series books | 0.18 | 0.1 | 7909 | 16 |
| latest space opera novels | 0.27 | 0.4 | 9702 | 19 |
| free space opera books | 1.63 | 0.6 | 2306 | 70 |
| best space opera tv series | 1.76 | 0.7 | 3499 | 39 |
