Nostr is much better now than it was in 2023. Mainstream relays can effectively filter and handle spam. However, the number of active users is still not large enough, and many previously active users have left. Most of those who left were influencers with their own followings who chased popularity; since they couldn't gain benefits on Nostr, they naturally left.

Only with more participation can the Nostr community be better developed.

Primal will be a good client both in android and iOS.You can find many trending posts through the "Trending" section.

And You can also quickly find people you're interested in through the website following.space.