Just a note that HBO Max is offering 40% off their annual subscriptions. $104.99 for ad-free (works out to $8.75/month), and $69.99 for ad-supported ($5.83/month). This is through their web site and direct subscription. Not certain if it's available through 3rd party billing like Roku.
For reference, ad-free not only has no ads, but allows downloads to devices so you can watch without Internet, and access to 4K material.