A few one acts for practice DNs:
Fateh Azzam, "Baggage” (in Short Arabic Plays, Salma Jayyusi, editor)
Clare Bayley, "The Container"
Steven Berkoff, "Fall of the House of Usher"
Karel Čapek, “R.U.R.”
Anton Chekhov, "The Bear"
Jimmie Chinn, "Interior Designs"
Erik Ehn “Maria Kizito” (Theatre of Genocide, Robt Skloot, ed)
Athol Fugard, "The Island"
Alice Gerstenberg, "Overtones"
Nikolai Gogol, “The Gamblers”
Václav Havel, "Protest" (one of his Vaněk plays)
Tarrell McCraney, "In the Red and Brown Water"
Sławomir Mrożek, "The Emigrants"
Diane Samuels, “Kindertransport”
Owen Shears, “Pink Mist”
Wole Soyinka, “King Baabu”
Mario Vargas Llosa, "The Young Lady from Tacna"
Paula Vogel, “The Long Christmas Ride Home”
Nick Whitby, "To the Green Fields Beyond "
WB Yeats, "At the Hawk's Well" is available on-line
https://archive.org/details/fourplaysfordanc00yet
as is
Caryl Churchill's Seven Jewish Children: