Where can I learn new Openings?

You could ask us in forum!
What opening are you thinking about?
Or if you don’t know name of the opening.
You could show us the moves your thinking about.
Than we can try to figure out if the moves your playing are part of an opening and if it’s good or bad etc.
Another option would be to go to Free Database and look up the name of lines.

The very last thing you need is new openings.
There are a million more important things. Starting with "if your opponent threatens mate-in-1, don't allow it".
Example game:
https://www.chess.com/game/live/120126652344?username=cronosthesecond
Hippopotamus Defence club is a place where everyone is met with open hands, here you can meet strangers, talk with them on our discord, play tournaments and analyse games together. And the best of all - learn about the Hippo Defense - an underrated opening used with success in the world championship match. We are waiting for you! https://www.chess.com/club/hippopotamus-defence-swamp/join