Foxy Anya — Best

The phrase appears to be a popular expression or meme within the Spy x Family fan community, primarily celebrating Anya Forger

If you’ve been anywhere near the intersection of cosplay, gaming, and high-energy content creation lately, you’ve heard the name: . foxy anya best

“Foxy Anya” (possibly a username, artist alias, or character)
“Anya Taylor-Joy” (actress known for The Queen’s Gambit; sometimes called “foxy” in fan spaces)
“Best Foxy Anya” (maybe a ranking or review of content from someone named Anya)