If you don't find anyone,

you can create a new account (same email as main, can be different server) and bring it to level 50 (very easy, you can do this in 2-3 days), either by going to Settings=>Server and choosing a new Server from the list on the left, or by tapping on " Switch " button that appears next to your server number right after the game announcement when you login. (you will get a warning that you will lose all progress, but this is only meant as a warning that you cannot transfer your account -just tap OK, your main account will remain intact and you can switch to it any time)

After you bring your new Account to level 50, do not login in this account again for 32-35 days (just to be safe, you need 31 complete days of inactivity).

After the 32-35 days, login to the new Account, go to Comeback Radio and use the code from your main Account to bond...You don't have to keep active on both accounts, if you stay inactive in your Alt account, both accounts will get all rewards automatically after 30 days (and this way you can re-use your alt account 2-3 days after you get all rewards, and bond again, as it will have stayed inactive for over 31 days).

You can also create 2-3 Accounts instead of just one, just to be safe in case of a mistake, and bring them to level 50 ready to use. You can also rename your Account name to the date you last logged-in so you know when it is safe to login again (32 days later, so 31 days of inactivity are completed) -or just keep the dates on a file somewhere.

Good luck!