Many newspapers have reporters who cover the performing arts. Some write articles about upcoming events like dance performances, plays or concerts. Others are "critics" who write reviews of those events. (Usually the same person does both.) There are also web sites and magazines that are either devoted to arts coverage, or include it.
In addition, there are publications and web sites for professional performing artists. Dancers, musicians, actors all have publications that help them advance their craft, cover the business side of the performing arts ("arts administrators"), and cover performing arts organizations and schools.
Often, these journalists work as "stringers" or "correspondents." They are not full time paid employees, but freelance writers who write regularly under their byline. They are paid by the article or by the word. Being a freelance writer is like running your own business. And of course, you can also start your own publication or web site. You can be paid by subscribers, advertisers, or by views on social media platforms.
There is another option too: working for a performing arts organization as a writer. They all have their own web site and email newsletters, and they often hire journalists to write and run them.
Allan recommends the following next steps:
I worked in fundraising for a small ballet company and while I enjoyed being part of our little arts community, the pay was low and the job could be quite frustrating. Often in order to apply for certain grants I'd become involved in envisioning programs we'd offer to the community in order to receive the funding. And often you wouldn't see the fruits of you effort for a year of more after an application.
You can have whatever career you want in performing arts. You just need to know that it is a process and some steps take longer than other. In addition, sometimes it can come in a different form that you expect. I know some people who wanted to be actors and they ended up doing a lot of acting in local theater rather than Broadway. Journalism can change to writing and writing can be a variety of careers. I think that I would focus on what would satisfy you and know that the road can change, sometimes in a really good way.