Is it permissible for a woman to choose a preferred scholar from whom to seek knowledge by watching videos?

There is no objection to a Muslim limiting their acquisition of knowledge to a specific shaykh, if that shaykh possesses knowledge and religious devotion, because knowledge is religion. However, one must beware of the temptation of Satan, who may beautify for some women the act of receiving knowledge from a particular person under the pretext of benefit, in order to lead them into temptation.