Some notable Chabad Mashpi'im today:
English speaking:
Rabbi Nachman Yosef Twerski https://www.youtube.com/watch?v=DL9EsnlHKi0
Rav Mendel Vecktor https://www.youtube.com/channel/UCEtDOee11d-WSfH4z2G1vhA
Rav Yosi Paltiel https://insidechassidus.org/about-rabbi-paltiel
Rav Itche Mayer Morgenstern (Chabad and Breslov) https://www.youtube.com/watch?v=GFCVtGmfWM0
Rabbi Yosef Yeshaya Braun (Dayan, Crown Heights) https://www.youtube.com/watch?v=yha49Z_NeIk
Rav Shlomo Majesky
Rav Ezra Shochet
Rav Naftali Silberberg
Rabbi Elchonon Cohen
Yiddish and Hebrew speaking:
Rav Mendel Gopin (also Russian)
Rav Sholom Deutch
Rav Michael Avishid (also French)
Rav Yoel Kahn
Rav Yehuda Altherm