I believe you can exclude providers. That will be deep within covenant settings.
As for which ones to exclude (and by default which to keep), honestly your guess is as good as mine. Maybe googling will find something (e.g. gvideo - google video links used to be quite reliable but that may have changed recently).
The best advice I can offer, if this is really a huge distraction, is to invest in a real debrid subscription (about £14 for 6 months) which will at least return more reliable links.
Otherwise you will need to go with the flow.