The word 'but' is not a pronoun.
The word 'but' is a conjunction, preposition, adverb, and noun.
A pronoun is a word that takes the place of a noun in a sentence.
Examples:
We have tulips but we don't have any lilacs. (conjunction, joins two parts of the compound sentence)
He ate everything but the broccoli. (preposition, introduces the prepositional phrase)
The image appeared but momentarily. (adverb, modifies the adverb 'momentarily')
You can either accept or reject it, there will be no but. (noun, direct object of the verb 'will be')
The contract is final, you can either accept or reject it. (the pronoun 'it' takes the place of the noun 'contract' is the second part of the sentence)
'than' is not a pronoun.
Interrogative pronoun
The pronoun 'them' is the third person, plural, objective, personal pronoun.
"Of" is not a pronoun. He, she, it, they, them, are all pronouns. "Of" is a preposition.
It is not a pronoun it is a common noun.
The word 'or' is not a pronoun; or is a conjunction, a preposition, or a noun.
It's called a reflexive pronoun.
Whoever is a subjective pronoun.
Video is not a pronoun, it is a common noun.
The pronouns in the sentence are what (an interrogative pronoun) and you (a personal pronoun).
The kind of noun or pronoun that corresponds with myself is a reflexive pronoun. The personal pronoun that would be used in this case is 'I'. In reflexive form you would say 'myself'.
"That" is a demonstrative pronoun. You "demonstrate" which thing you mean.