I highly request and suggest that you guys consider adding Armor Stand Tools as an alternative to the existing one we have called Armor Stand Editor. The design is way better, more unique, and way more user friendly. It seems to update frequently as of when new releases come. So odds are high that a 1.16 update will come soon. Versus Editor, they haven't even don't 1.15 officially. Link
Second request is TrHolograms, TrHolograms is the best hologram plugin available, featuring live updating holograms that update upon saving a file, viewing conditions, view ranges, and way more. Its made by the same amazing developer of TrMenu (Link) which made it into the plugins list a while back (Which I also requested). Link