Also, because you already have a lot of the content, maybe you don't need a blog? what about a "digital garden" ?
What is a digital garden? -> https://maggieappleton.com/garden-history
Tools (easy options included) -> https://github.com/MaggieAppleton/digital-gardeners
If you have your content in a note-taking app like obsidian, there is even simple tutorials on how to freely publish it with all those precious "multiple tags per category", all in one go.
Also, because you already have a lot of the content, maybe you don't need a blog? what about a "digital garden" ?
What is a digital garden? -> https://maggieappleton.com/garden-history
Tools (easy options included) -> https://github.com/MaggieAppleton/digital-gardeners
If you have your content in a note-taking app like obsidian, there is even simple tutorials on how to freely publish it with all those precious "multiple tags per category", all in one go.