Since the COVID-19 many folks are discovering live video as a way to connect with people.
StreamYard I was sent this website by a client and decided to test it for myself. I opted for a free account and did my first test by doing a live stream to my Facebook Group. The simplicity amazed me! I did not need to add any stream keys from Facebook was built in. The free version allows you to connect to one destination. I recommend you opt-in for the upgrade for $250.00 a year or $25.00 per month. This allows you to stream live to Facebook, YouTube, Linkedin Twitter, by simply attaching your social site URL and confirm. You can add custom banner, news like ticker at the bottom, and backgrounds.
Zoom by now is well known and after solving hopefully some security issues allow you to stream your session live on Facebook. Some can be video or audio and the ability to record save to hard drive or on the Zoom cloud. Allows customized groups ( upgrade). I record my podcast on Zoom download the audio to my edit software and then upload my podcast to my host platform. Use RSS feed for Apple and Google Podcast Platforms. People who never did any virtual education or virtual work with clients are using Zoom for a business tool.
Facebook Live is popular for your personal page, business page, and groups.
OBS Studio Is an opensource broadcast studio and is for the tech-savvy. Multiple cameras. You set scenes and load the stream keys from the social platforms you want to broadcast to. Go and visit the website link and take a look around. For the Tech-Savvy!
Periscope If you have a Twitter account. The link is the how-to go live.
YouTube Live I would use StreamYard for the YouTube live stream. The link provided helps run you through the process for YouTube.
Linkedin last I checked is still asking for an application. The link includes tutorials for application and PDF instructions for other live hardware/software live options.
Other Live Options
These are recommendations. I do not represent any of the business linked. Simply passing information for your edification.