Executor choice is one of the biggest levers for how hard your death will be on others.
Two can be safer than one, if they can work together.
Too many can create deadlock.
You can name a beneficiary as executor. This is common.
It gives them a say, but it also creates potential conflict.
If you do this, choose people who will not weaponise it.
Do not leave surprise roles. Confirm they are willing.
The best executor is useless if nobody can find the will.