Recently there has been some activity on integration with LetsEncrypt and Mikrotik. WHile Mikrotik does not directly support Letsencrypt directly yet, you can make it work with this setup
https://github.com/gitpel/letsencrypt-routeros
j2networks family of siteshttps://j2sw.com
https://startawisp.info
https://indycolo.net
#packetsdownrange #routethelight