I would have gone with Bloggers if the clue was 'Riyadh Khalaf AND (emphasis, Danny, not shouting) Joe Sugg. The fact that the clue says "OR" suggests to me that the answer is singular. "Blogger" is only 7 letters
JJ, I know it was not your intention to shout but, from Site Rules:-
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• Please refrain from adding emphasis in CAPITAL LETTERS as this indicates shouting and is considered rude.