To stay connected with everyone, I bought five different tiers of airports that are not really related, and set up an automatic switching rule, focusing on continuous connection.

For example, having just one of the Weiyun Four Heroes is enough, because their upstream providers are all the same.
It reminds me of some funny stories from the past. Once, in one of the airport groups, someone offended the management, and the management threatened to block that person's IP directly, making him unable to access all the airports, claiming they are familiar with the upstream suppliers of all airports.