How do you handle service discovery when everything's always changing?

hey everyone, been thinking a lot about how services find each other as instances spin up and down constantly in cloud-native setups. What are your preferred methods or tools for service discovery? Are you leaning towards client-side discovery with libraries like Eureka or Consul client, or server-side discovery using load balancers with built-in discovery features? Curious about the trade-offs youve experienced.