Take a deep look at your existing test automation and report on ways to improve execution speed, maintainability, robustness, and other factors including good practices and patterns.
Add test automation with your continuous delivery pipeline to run sanity checks when you deploy to any environment and comprehensive test coverage on every change.
Scale up your testing by running tests in parallel on cloud infrastructure for cross platform and mobile testing using Sauce Labs, BrowserStack, LambdaTest, or Cypress.io.