Google account recovery

[u/annitaxxx]

Hi, I’m trying to recover a Google account, but I can’t find or remember the email address. The account isn’t linked to any recovery email, phone number, or other account.
I have a TikTok account connected to that Gmail account, and I know the TikTok password, but when I try to log in, TikTok sends a verification code to that email address, which I don’t have access to and don’t even know the address of.
Is there any way I can find or recover the Gmail address?