https://www.cnet.com/news/avengers-porn-captain-marvel-black-widow-spider-man-lead-searches/

As far as specific characters, MCU newcomer Captain Marvel (played by Brie Larson) led the list, followed by Black Widow (Scarlett Johansson), Spider-Man (Tom Holland) and Hulk (Mark Ruffalo).

Courtly Captain America (Chris Evans) was next, followed by Scarlet Witch (Elizabeth Olsen) and Gamora (Zoe Saldana).