The job title is "writer."
Writers are usually self employed, and to make money, they need to write something that someone wants to pay to read, and convince a publisher to publish whatever it is, and push it onto the bookstores. For travel writing, there is another market in travel magazines, including the few RV magazines. What sells might have to go beyond ratings or reviews of RV parks.
Only after you've established your reputation as a writer will a publisher consider putting you on salary and paying you for whatever you write, sight unseen. Think syndicated columnist. Then you need to produce something regularly, to meet the publication schedule, whether you have something to say or not.
But as a writer, I was in the 20th century. There are some 21st century aspects of writing I don't yet understand. One is blogging, you put your thoughts out on the world wide web, anybody can read them, you hope some of the people like it enough to donate money. Or enough people like it that you can convince advertisers to pay you to blog.
The other is electronic self-publishing, you write a book and put it up for sale with a place like Amazon. You hope some people will buy a copy.
How much you can make, whether or not you can make a living, depends on how well you can sell yourself and your writings, more than how well you can write. One crummy but fabulously popular novel or non-fiction self help book might set you up for the rest of your life, but most publishers will start demanding sequels. On the other hand, really great writers like Steinbeck, Hemingway, MarkTwain struggled for years to earn a living writing what they wanted to write, had to do other things to keep going.
I wish you luck. Remember, it is about selling, not about writing.
