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If you are posting in a community, they often list recommended tags for relevant content. Otherwise, your tags depend on your audience. Using popular generic tags can risk getting lost in a sea of content rather than earning eyes on your writing. I suggest avoiding the temptation to try tagging your way to success. Instead, target your audience by choosing the right communities and selecting specific tags relevant to each post.

How can I see the recommended tags in communities? Oh I understand now. Thanks.

Which frontend are you using? I favor PeakD.com, and if I start a post from the community page itself, suggested community tags are shown in the post composition page.

Ohh alright, I use peakD too.

What tags do you think I should use for a chess post

That depends. "Chess," obviously. Probably "games." But is it about history, strategy, openings, checkmates, a particular tournament, or something else? Is it online or in person?

There is a games page for tabletop games in general, and Dungeons and Dragons specifically. Tabletop / DND.

There is also The Chess Community.

It's about my Chess journey, how i stopped for a while and I'm back now