[9] She co-convened the spoken-word poetry conference at Royal Central School of Speech and Drama (2022) and supported the International Black Speculative Writing Festival, director Kadija Sesay, at Goldsmiths in 2024.

[10] Osborne has published extensively on the work of Black British writers (including Kwame Kwei-Armah, Roy Williams, Lemn Sissay, SuAndi, debbie tucker green, Andrea Levy, Valerie Mason-John and Mojisola Adebayo).

[15] She is a member of the Darcus Howe Legacy Collective and co-edited with Leila Hassan and Margaret Peacock the commemorative Special Issue of Race Today, the first edition of the magazine published since 1988.

[18] Osborne is a panellist—with Kit Fan, Moniza Alvi, Kwame Anthony Appiah, Chloe Aridjis, Homi K. Bhabha, Margaret Busby, Maureen Freely and Natalie Teitler—for the RSL International Writers awards in 2024,[19] and was made first female College Orator at Goldsmiths in the same year.

Osborne is a Fellow of the Royal Society of Arts, and in 2022 was elected an Honorary Fellow of the Royal Society of Literature (RSL),[20] alongside Sandra Agard, Adjoa Andoh, Suresh Ariaratnam, Nicola Beauman, Julie Blake, Steve Cook, Steve Dearden, Joy Francis, Helen Garnons-Williams, Jane Gregory, Christie Hickman, Nicolette Jones, Julian May, Polly Pattullo and Di Speirs.