Sort:  

you can stepping out of the niche for sure , you can for example get some partnerships for that with other projects that dont compete for the niche with you

Partnerships outside the niche can really work, working like a symbiosis, where you try to attract an audience different from your niche and your partner also tries to get new people for what he wants. I believe it could be the solution if your profile is more stuck and has no news.

It's a good tactic, we have examples like this in various types of ecosystems, where there is a migration to where the wind is stronger, where it is warmer and not cold, as well as migration when there is no more food where we are, if the land has dried out , we need to look for another place where there is abundance, I believe this is useful for searching for hashtags and topics that are trending.