Below is a curated list of system level design articles that link to other Medium.com articles and authors. I’ll revise this list from time to time to include any interesting topics.
Explain Server Monitoring
https://betterprogramming.pub/a-tricky-system-design-interview-question-explain-server-monitoring-c5be0ce54a30Design a URL Shortener
https://eileen-code4fun.medium.com/system-design-interview-url-shortener-cf68ea5db037Design Google Search
https://eileen-code4fun.medium.com/system-design-interview-mini-google-search-6fd319cd66caDesign Youtube
https://eileen-code4fun.medium.com/system-design-interview-mini-youtube-5cae5eedceaeDesign Facebook Messenger
https://eileen-code4fun.medium.com/design-facebook-messenger-438d76639985Design Twitter
https://eileen-code4fun.medium.com/system-design-interview-mini-twitter-1e0e99bd7377Globally Unique ID Generation
https://eileen-code4fun.medium.com/system-design-interview-globally-unique-id-generation-25359500573Replicated and Strongly Consistent Key/Value Store
https://levelup.gitconnected.com/system-design-interview-replicated-and-strongly-consistent-key-value-store-b690d8e15c9aGeo-Spatial Index
https://kousiknath.medium.com/system-design-design-a-geo-spatial-index-for-real-time-location-search-10968fe62b9cAuto-Complete System
https://interviewdaemon.medium.com/design-autocomplete-system-45b2993cab82Patterns of Top-K-Elements Algorithms
https://levelup.gitconnected.com/patterns-for-coding-interviews-top-k-elements-1a1368c4cbf0