If I were president I'd cancel most of the meetings, travel, etc, etc, and make some forums which are publicly readable.
There'd be a forum where all the countries have an account with write access. And one where all US politicians have write access. And one with a lot of media and intellectuals.
I think forum discussions are actually the best thing the US president could do.
Imagine if all the politicians, media personalities, etc., with bad ideas had to actually write about them on the record on a daily basis? Imagine if you just kept following up on discussions. What would they do? What most people do currently with me is just stop responding to things, which they can get away with socially because I have low prestige. But just refusing to answer forever wouldn't be a viable answer to the president's forum, and arguments/questions from the president and his staff. That'd look really bad to the world: Nancy Pelosi has been asked the same question for 5 days in a row and just won't answer at all.
But if they did answer they'd get pinned down.
They'd have to do evasive tactics: missing the point, playing dumb, trying to create confusion, saying unclear things, trying to make the discussion go in circles, etc. All that stuff can be called out, pointed out, and basically made to look as foolish as it is. People get away with that stuff in verbal formats with little followup, and behind closed doors, but not against the best debaters over a period of weeks with every word of it in the record. None of the bad guys have any method of dealing with that level of intellectual scrutiny.
They can lie, but the lies can be documented and the canonical links documenting lies can be repetitively posted every single time a lie is repeated. Staff can be hired to do that. That would cost a hell of a lot less than a wide variety of current, unimportant government departments. It's very easy by government standards.
And how do you deal with media questions? Press briefings are so incomplete that it's hard for people to see who's right and why. What if all the bullshit the press kept bugging Trump about was on a forum where some staff members replied with canonical links over and over so everything was getting answered? How would the media continue to ignore the main points, which they currently ignore, if it was being linked in reply to them every time they talked?