Jail will be the only thing that will stop him.
This is something to think about in greater depth.
Given:
Trump has committed felonies in NY at the very least and has shown himself as a national security risk and a supporter of Putin with his standing up for him and abusing our intel agencies.
Trump owes DB, the Putin controlled bank upwards of half a billion and Putin does not suffer failures well. Trump would be wise to fear him. Consequently, Trump may try to offset his debt with information that would be harmful to the US, but beneficial to Vlad and so limited outside communication would be in the best national interest. Further his chances of fomenting insurrection must be taken as a serious possibility and that is another reason that public speech is curtailed. Felons who are risks to national security are already taken into consideration with the Patriot Act and more, Republican creations.
Trump is also at extreme risk in a prison population His long term survival even with Secret Service protection is problematic at best.
The only way to address all these issues is for Trump to be isolated in the highest security prison in their most secure solitary location.
The Secret Service can stand watch over him and visitors would be one vetted attorney and conjugal visits. All visitors would have all electronic devices removed and only the attorney access to pad and pencil with the pages and pencils accounted for after the visit.