Can you suggest any {e.g. paid/free/web-based/desktop/mobile...

Can you suggest any {e.g. paid/free/web-based/desktop/mobile} tools or apps for me to {e.g. handle/arrange/optimize} my email overwhelm? The recommendations should be based on my {specific requirements/preferences/budget}, such as {e.g. email clients/task managers/calendar integrations}, while also ensuring that {e.g. data/security/privacy} are {e.g. safeguarded/encrypted/never compromised}.