Best Email Finder: Skrapp.
Best Overall: Mailchimp.
Best for Automation: ActiveCampaign.
Easiest to Use: MailerLite.
Best All-in-One Marketing Suite: Hubspot.
Best Affordable Option: Moosend.
Best for E-commerce: Drip.
Depends what you mean as @tanjum has said both Mailchimp and Hubspot are excellent, and have some great features but they both become quite expensive for a large amount of users....value for me plays a part too