Not all Pentecostals are the same. The poster refers to Oneness Pentecostals, who sometimes are Modalists, but other times are so confused they don’t even know what they actually believe, as I’ve experienced in my interactions with these loathsome group.
I have family who are UPC. After reading up on it, explains a lot.
If you need a name that will be on the sign-board in front of the building, that would include the United Pentecostal Church.
Could be others but I am not familiar with them.