Usually, another board member, and usually the Vice President.
Read your governing documents to determine the process required to notify the membership, nominate candidates, hold the meeting, vote and elect a new President.
It's a good idea to have an odd number of officers. Most governing documents require a minimum of three board members.
the vice president.
If the president dies or resigns, the vice president takes over his job for the remaining years/job.
President then Vice President then Speaker of the House.
If the president passes away, resigns, or is impeached.
The Vice President followed by the speaker of the house, if something were to happen to the vice president
When the president dies, becomes ill, resigns, is removed, OR IF THEY ARE ELECTED PRESIDENT in the next election.
The VP becomes president whenever the president dies or resigns. If the president is temporarily unable to discharge his duties, the VP can temporarily be authorized to act as president.
That would be the Speaker of the House, as long as the Speaker meets the presdential requirements.
The vice president
The Vice President.
VP
The vice president