How to filter by a string that contains multiple values?

I want to write a query in MySQL to filter rows based on Identification Numbers --- in which groups of identification numbers are linked to a string. https://xender.vip/

For example, the string "Batman" would be linked to 30 identification numbers.

I want the ability to search a table by "Batman" and have it return all the rows that contain that identification number. https://19216811.cam/

Any thoughts?