Hi, I would be forever grateful if someone could share an invite to one of these indexers. I am an amenable person so please feel free to message me and discuss further but I will be honest, I will not do any transactions involving crypto and if you are expecting any form of contribution...

NinjaCentral doesn't do invites unfortunately. You will have to monitor and wait until they open registration. If you wonder how I know this, it is because I am currently a member and in the discord they mention no invite system exists but they may implement it in the future.