The March 9th episode of Rick Steves Monday Night Travel (MNT) will feature European travel and rail expert Mark Smith (creator of The Man in Seat 61).
The Man in Seat 61 website is often recommended here on the forum as a reliable source for all things trains.
You can sign up to watch live here:
https://us06web.zoom.us/webinar/register/WN_2d0bKyhjRs2bFPxLWJfe1w#/registration
https://www.ricksteves.com/travel-tips/travel-classes/monday-night-travel
The video will also be able here and on you tube. Usually 2-3 days later.
I'll add the links to the recordings here once they are available.