Twitter Tutorial - How to use Twitter Effectively
Some hashtags are trending on certain days. When our quarantine began, hot topics were #stay home, #stayhomeandreadabook, #wearafacemask, etc. Those trends always change, depending on the current news, events, or popular tweets. I sometimes check what is trending, and if it applies to my niche or my tweet in general I will add that trending hashtag.
Mine is in Spanish and focused on Mexico, but also internationally, so it will look differently from your Twitter trends. Apparently, Hermione is a big deal today, not sure why ;-)