Have a look at all of the resources linked here: How to Contribute to Open Source
Hope this helps
many open source projects have a tag specifically to identify issues that can be tackled by beginners, you can check if an open source you like needs anything done that can be completed by a beginner.
Example of an issue marked like that: https://github.com/HabitRPG/habitica/issues?q=is%3Aopen+is%3Aissue+label%3A"good+first+issue"
Thanks but this issue is ‘Hold-on’.
yes, it seems so, but it was just an example
open source projects usually have a label for really easy changes
it doesn’t mean you will for sure find something open labelled like that
you will need to do a bit of research