Investigate joining a hosted server so there's people around who want to help you.

There are some "public" servers, but you'd most likely have to search the internet to find one . I myself run 2 dedicated servers, but only for friends/family. I would imagine most of your locked servers are similar in nature.

This might be a good place to start:

https://beebom.com/best-discord-servers-valheim/

what i do is type in "pass" or "password" in the filter and theres servers with the password in the server name