I think you can go with Yunohost. It is easy to start selfhosting and exposing services to the web. I use it for more than a year, and it is super cool. Especially I love the fact, that it is easy for newcomers, but also it is opened for customisation for more pro users. Yunohost provides domain with ddns, Fail2Ban and tells which ports should be opened (80 and 443 is all you need, maybe another one for ssh). It also provides SSO for hiding services that do not use authentication.