One time, I ran a "D&D Survivor" thread with over a hundred options. (I think it was 5E Subclasses or something? It was bananas.) I learned a lot from that experience, so here's my advice.
I think the best you can do is list everything in alphabetical order, so that people can find their favorites easily. If you can't make the list smaller, the next best thing is to make it easy to navigate.
Remember that once the voting starts, you can't edit or remove anything--but you can always add new stuff. So if people show up and say "Aw man, I missed the cutoff and wanted to include Tome and Blood," you can add it to the poll. These suggestions usually stop after a few days.
Above all, wear a thick skin. No matter what you do or how you do it, we are going to complain about the choices you made. Our complaints will only get worse as the poll goes on: if one of our "darlings" isn't winning, we will blame your poll. If the wrong version is winning, we will blame your poll. If it rains tomorrow, we will blame your poll. Just be ready to roll your eyes a lot, and get comfortable writing "I'll do better next time" at the drop of a hat.
I'm looking forward to seeing the poll! Even the list of nominees is interesting to me: I'm just as curious to see which ones were forgotten or ignored.
