Have few ideas like

In addition to two options - one that i can see my posts and replies and posts from people whom i follow and the second option is that i can see all posts from all other people connected to the relays. ( As of now these are mostly irrelevant junk posts ) There can be a third option which filters and show me most relevant posts from people nearby me from my own city whom i dont follow yet. so that i from these filtered posts i can choose new people to follow. It can also be more popular post from more popular authors located far away from me as well.

To avoid junk posts and to promote satoshi tippings instead of likes - The visibility of the post can be based on the tips received for each posts - Part of the tip can go to the author of the post and part of the tip can go to the relay and part can go to the NOSTR foundation to enable marketing spendsv

using NOSTR i should be able to discover like minded people using same hashtag in posts located nearby me

using NOSTR i should be able to discover like minded people using similar hashtag in posts and who put posts which are more relevant and more tipped by satoshis even if they are located far away from me.

the visibility and kilometer range of a post can be further increased if i have other posts posted by me on the same hastag already tipped with satoshis - this will help the best authors globally on a hashtag to be visible for people far away.

So for example if i am a dentist and want to connect with all the nearby dentists within my city it is possible to do that.

If i search for root canal hashtag i can see the posts from all dentists nearby me on root canal even if its less tipped. But i can see all the heavily tipped posts even if they are far away from me so that i get the best content in the relevant topic i am searching for