I don’t think anyone can give you good advice without knowing the reasons you’d rather not get in to.
I can think of various scenarios where some sort of minimal internet presence under your real name would be useful for social or employment reasons, but exactly what it is you’re trying to accomplish makes a big difference in terms of what tools (including corporate platforms, federated microblogging like Mastodon, a blog, or a static website) will get you the results you want.
What’s popular where you live or in your professional field matters too. For some people, not using Facebook or Linkedin specifically is unusual, but we don’t have enough information to know if that’s true for you.