Get My Site Url

GetMySiteUrl.cs

using Microsoft.SharePoint.Client;
using Microsoft.SharePoint.Client.UserProfiles;

using (ClientContext clientContext = new ClientContext("https://tenant.sharepoint.com/"))
{
    SecureString passWord = new SecureString();

    foreach (char c in "your_password".ToCharArray()) passWord.AppendChar(c);

    clientContext.Credentials = new SharePointOnlineCredentials("your_email_id", passWord);
    
    //This is the login name or account name of user whose my site url is needed
    string loginName = "i:0#.f|membership|email_id_of_user_whose_my_site_is_needed";
    PeopleManager peopleManager = new PeopleManager(clientContext);
    PersonProperties properties = peopleManager.GetPropertiesFor(loginName);
    clientContext.Load(properties, p => p.PersonalUrl, p => p.UserProfileProperties);
    clientContext.ExecuteQuery();
    Console.WriteLine("My Site Url is: " + properties.PersonalUrl);
    Console.ReadLine();
}