Can you do a written guide, I hate watching talky videos.
OK - no problem!
1. Watch one of the hundreds of YT videos on how to set up three-point lighting.
2. Watch one of the hundreds of YT videos on how to frame a shot for a head-n-shoulders piece to camera, whilst using an Autocue.
3. Watch one of the hundreds of YT videos on how to structure a break-away piece to a second camera and why you need to do this.
4. Watch one of the hundreds of YT videos on how to set up the sound, using either a mic that is in-shot, i.e. can be seen, or a lavalier mic, like wot is used on the telly.
5. Use a bloody video camera - they're as cheap as chips nowadays and can be mounted on a tripod (which you probably have already!) and have zoom lenses. Don't use an iPhone!
6. Watch one of the hundreds of YT videos on how to set up and use one of the many excellent post-production packages you can download for free, like DaVinci-Resolve and Hit-Film.
7. Watch one of the hundreds of YT videos on how to write a short, sharp and to the point video script that is witty, engaging and a good pitch for your company.
8. Watch one of the hundreds of YT videos on how to present yourself to camera, without appearing artificial or awkward.
9. Spend a few weeks practising all the above.
10. Now give up and hire a professional!