Email Clients for Windows 10 MOBILE

[Windows Central Question]

I have a Lumina 950XL which uses Windows 10 Mobile. Could you give me a sense of some good email clients to use other than Outlook. I cannot get a badge on my Outlook Tile (or individual account Tile) to indicate how many new emails I have in my account. Could you give me tell me some other email clients available for Windows 10 Mobile (and which are your favorites. Thank you!