TrumpSocial likely has the same problem the Russian military does: the grifters have already stolen everything of value in it, and now it has to bumble along with no money, shoddy equipment, and poor leadership.
If they don’t buy it, because GOAT is usually all caps, pivot towards, “I’m a truck driver who delivers Goats, but I misspelled it!” You can help sell it by stealing a few “trucker convoy” pictures.
I’d go with “Trumpjoinder2024”
After workshopping some variations on Facebook, I’ve found that the “write in Trump’s name for EVERYTHING to SEND A MESSAGE” line will probably be more effective than elaborate theories involving joinder. Not as much fun, though….so I’ll probably do some of both.
My biggest problem is my own self-discipline, sometimes fellow liberals that think I’m serious will reply to me ( the Trump groups I’ve been commenting to are about 3/4 Trump fans and 1/4 anti-Trumpers) and it’s been hard to resist blowing my cover. I’m working on it, though.
If you are caught we will have to disavow any knowledge of your activities, of course. 
cue Mission Impossible theme
No no no, we double down on it. “@Ann_Hedonia is an antifa troll who is trying to discredit the notion that writing in “TRUMP!” for every office will be an effective strategy to allow TRUMP! to become President again! Don’t let those anti-fa trolls trick you into not writing in TRUMP!”
I’m genuinely amazed he hasn’t tried to trademark TRUMP.
A bridge tournament would owe him a fortune!
Or he might have to fight Marvel. Good luck with that, Donny.
Hey, hold on. He might actually have a case there.
Trump is a talented stage performer, and illusionist.
Trump is a physical coward and something of a weasel. But he is cocksure in his abilities to see him through confrontations.
Are we sure Marvel didn’t rip off Donald’s likeness here?!
Golden Lyin’ Orange-u-tan
Do not insult the noble Librarian in this fashion. 
Ook.
Hey! I didn’t use the m-word that rhymes with hunky!
How the fuck did you manage to misspel “Oook”?
And, according to another Marvel character, terrible in the sack and a lousy tipper. (This Trump, not the real one. Just a coincidence, I’m sure).
Are we really sure which is which at this point?
Oooooook.
My new Smart Dope Reader just asked me “The word Oook has been misspelled. Would you like me to delete four o’s for you?”
More crickets…
j