There are lots of providers that can do this for you, note that ARIN will require you have justification on file. That means the reason for being assigned the /26 and what you are doing with it. Not a difficult task and as long as you are willing to do that most providers will accommodate you.
Then I agree that you will want to host somewhere outside the USA as the risk of DMCA for 64 IPs would be substantial. The IP request will be still a tough get due to the finite amount of them left, but you will run less risk of having the server pulled for abuse with an offshore host.
It's not a thread hijack to ask what the IPs are needed for, because in order to get that many IPs, any host is going to ask the same questions, and they're not likely to enjoy the answer "I need lots of IPs and DMCA complaints will come in frequently" as that sets off a lot of red flags.
If you want a host that will allow 64 IPs with valid justification and you don't expect a lot of abuse complaints, there's a world of options open. If you want a host who will give 64 IPs with no reasonable justification for uses that are going to generate abuse complaints, that's an entirely different problem and will limit your options dramatically. Hence, it's completely relevant to your needs and the topic of the thread.