How to find multiple matches to a single input. XLOOKUP only returns first value.

Hi, this question may have a fairly simple answer, but I haven't managed to figure this out using XLOOKUP() - or another function. How do I tell it to keep searching and return the values in a column for all instances of an input value in another column, rather than stopping the first time it encounters a match? I saw a solution using Index, Small and Row functions, but only for one input and one column output. I have multiple input values to search, and want to return multiple columns. Many thanks in advance for any assistance anyone could offer!