Depending on where you live, posting recorded narrations can be determined to infringe copy right and your videos would be taken down, especially if there is already an audiobook avaliable. Reading on a live stream doesn't seem to be an issue, though so that may work well if you build a following. Make sure you have a good mic and a quiet room with some basic sound proofing will help. Read the book first to become familiar with the text before you start reading aloud. Depending on how long you plan to read aloud, keep water or another beverage handy. Keep in mind that reading aloud is always slower than reading silently with your eyes. For example, I can finish a 300 page book in about 4 hours, but the audiobook will be closer to 7 hours.
If you want to get into producing audiobooks, research your country's services for the blind. You might be able to volunteer or be hired as a narrator.
For example, the US has the National Library Service for the Blind and Print Disabled (loc.gov/nls) which produces recorded audiobooks and magazines, and distributes them for free via online, mobile app, and on special cartridges by mail. There's a network library in every state and a majority of them also have recording studios that volunteer narrators help produce audiobooks. The main NLS pays narrators. The network libraries are able to produce these for free and bypass copyright because they are only distributed to patrons who qualify for the library program due to a qualifying disability and have been certified by a medical or educational professional. Lately, they've also been able to gain access to "commercialized" books that for profit audio publishers (like amazon) have already produced as well as titles from other countries because of the Marrakesh Treaty. You can search for avaliable titles through their
$1They also have bimonthy and quarterly catalogs containing highlights of the newest books that's been added to the program: https://www.loc.gov/nls/braille-audio-reading-materials/latest-books-in-braille-and-audio/
Bookshare.org is also a fantastic resource for researchers and students because they have multiple ways of making the materials accessible. It's free for students, but there is a fee for individuals who aren't. Their collection includes textbooks and research materials that aren't popular reading but still need to be made accessible. I've also heard Learning Ally is great too. There are also various religious groups that produce audio books that they distribute for free, but they're limited to the official texts their religion is based around.