Use gitflow to develop, try to use this practice whenever you can.
Try to define a small phrase for the feature branch like (feature/user-login) and refer to the corresponding issues in your commit messages (Call to API login #123).
When you're done with development create a new Pull Request and add a close/fix declaration on the Pull Request description to autoclose the related issues on merge.
Note: If the project hasn't any related issue you should create one to refer your commit messages to it.
Create one issue for each bug or fix you want to do or group them by functionality. The branch naming should be equal to the one used in features (bugfix/login-bugs).
Try to develop it in a separate branch (hotfix/login) merge it to master by Pull Request and use the Pull Request as your bug issue (tag it with bug).
Try to assign at least one reviewer on your Pull Request and try to not assign them always to the same person and tag them accordingly.
❤️ Happy Coding!