What would you search for for the kind of things that you want to rank for? But remember, in SEO, subjectivity is dangerous. So we use keyword research tools.
There are free ones like the one that comes with Google Ads. There are some kind of OK free ones like the Neil Patel’s Ubersuggest tool. But the best keyword research will be to use SEMrush or Ahrefs or Moz or another tool that’s specifically designed for it.
If you just choose keywords you think are going to be all right, the danger is no one is actually searching for them and just going to waste your time. You don’t want to rank for something that doesn’t actually have an appetite out there that people don’t want. There you go. How do I find SEO keywords?