If you are looking for a specific creator's legitimate website, try using advanced search operators in your browser (e.g., site:instagram.com "Nastia Mouse" or site:youtube.com "Dream Studio" ) to filter out third-party spam sites.
When looking for comprehensive media archives (like series of episodes ranging from 001 to 109), the best and safest approach is to visit the creator's official distribution channels.
Many digital artists and independent studios utilize platforms like Patreon or similar subscription models to safely host full backlogs of their content.