| Competitor |
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| Complete Guide to Birds of Prey |
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| Complete Guide to Outlander |
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| Complete Guide to Wonder Woman |
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| Complete Woman |
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| Conde Nast A List |
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| Connect Arizona |
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| Controversy |
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| Cory Everson's Gotta Sweat |
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| Cosmo Girl |
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| Cosmopolitan |
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| Cosmopolitan Calendar |
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| Cosmopolitan Confessions Special |
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| Cosmopolitan for Latinas |
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| Cosmopolitan Subscriber Cover |
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| Costco Connection |
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| | | | | | | | | | | | | | | | Costco Connection Magazine | | | | | | | August | 2021 | | | | | | Norah O'Donnell | |
| Cottage Life |
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| Cottage living special |
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| Country Music Today |
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| Cowboys & Indians |
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| CR Fashion Book |
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| Cristina - Spanish |
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| Cult Times |
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| CVLUX |
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| D Sport |
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| Daily Variety Supplement |
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| Dance Spirit |
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| Deal |
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