For the few people that not will not attend the protest, here's some links to the social media accounts of some people that are or will be there:

Neil Wolfe, the organizer of the protest:
https://twitter.com/TheLightReports and https://www.youtube.com/channel/UCNy66gTSy8gTRLp3woYIQYw/videos

Titus Frost
https://twitter.com/imperatortruth and https://www.youtube.com/channel/UCDHrwVzgl-vZ14wWnN1LVjQ

David Seaman, will probably speak and perhaps stream:
https://twitter.com/d_seaman and https://www.youtube.com/user/davidseamanonline/videos

David Shurter supposed to speak, but not sure if he will:
https://twitter.com/davidshurter and https://www.youtube.com/channel/UCRx10uYGACpQNLfY3SpzYXQ

PizzaGate Howie, Howard Caplan, one of the first to arrive in Lafayette Park:
https://twitter.com/PizzaGateHowie/status/845633502473281537

Tazzmaniac: https://twitter.com/kjbtazz (not sure if the same person, but refers to livestream of:
Lift the Veil: https://www.youtube.com/watch?v=Z_3kg6h5vLA https://www.youtube.com/channel/UC_rHIryFaY1d9Tt46SQE8tQ/videos))
[Personal note: I think Lift the Veil is a paranoid psycho, and probably a dangerous man too - chemtrail type, denies the existence of nuclear bombs.]

Not on my watch, will be periscoping: https://twitter.com/exposing_wmd

мaggιə вaттləѕ https://twitter.com/mimosasinbed
https://www.periscope.tv/mimosasinbed

Dannielle Blumenthal https://twitter.com/DrDannielle
"Crowd gathering rapidly" https://twitter.com/DrDannielle/status/845645532349550592
"We are here #stophumantrafficking #missingdcgirls #pizzagate #pedogate" https://twitter.com/DrDannielle/status/845648482354581505

CHS of SIM https://twitter.com/2020_KAG
Angel martinelli https://twitter.com/martinelki
Christopher Sojka https://twitter.com/csojka13
truth_seeker_17‏ https://twitter.com/truth_seeker_17

Some other Twitter accounts of attenders:
https://twitter.com/Charyoutree19
https://twitter.com/ARRESTPODESTA
https://twitter.com/formerlyAWTM

https://twitter.com/Suziechka

Not sure if they're there, but active on the protest:
#missing https://twitter.com/OpenThePrimary
PEDOGATE Angelica https://twitter.com/PGAngela4

I will be updating this post