I have been looking around and understanding about dynamic dns, but some of the information seems to contradict each other.

I am currently using a HH5 and it would be great to find a service that works with this, but installing a small client is also an option. Ideally I am after a free service but again if I have to pay I don't mind, but as this is a test to see if I want to keep it moving forward don't really want any long term thing yet.

any help or advice would be great. if there is any advantages to changing from a HH5 I might be tempted to that too, but that adds more cost so not sure I would be willing to do that till I have proved it and it becomes useful.

Main reason for it, so I can use it to host things like Plex, Minecraft and also might dabble at building a website/forum for the fun.