1. You can browse clients that curate content for you, like:
https://habla.news/
2. Switch to a set of relays that results in a clean global feed. At the moment I see no spam with these enabled:
⬤ wss://eden.nostr.land
⬤ wss://nostr.fmt.wiz.biz
⬤ wss://relay.damus.io
⬤ wss://nostr-pub.wellorder.net
⬤ wss://relay.nostr.info
⬤ wss://offchain.pub
⬤ wss://nos.lol
⬤ wss://brb.io
⬤ wss://relay.snort.social
⬤ wss://relay.current.fyi
⬤ wss://nostr.relayer.se
⬤ wss://nostrafrica.pcdkd.fyi