Collocations for fascinating - adj.

be, look, prove, sound
His testimony in court could prove fascinating.

become
seem
It just seemed really fascinating to me.

make sth
find sth

deeply, especially, incredibly, most (esp. BrE), particularly, really, terribly (esp. BrE), truly, very
a most fascinating book
‘This is all very fascinating,’ said Wilcox,‘but I have a meeting in five minutes.’

absolutely, quite, utterly
pretty, rather
I find him rather fascinating.

endlessly
I find the natural world endlessly fascinating.

oddly, strangely
equally
Renoir's later life is equally fascinating.

to
What was fascinating to me was the way the creatures moved.

Fascinating is used with these nouns:
account, array, article, aspect, book, collection, conversation, country, detail, discovery, discussion, example, exercise, glimpse, history, insight, lecture, material, mix, mixture, museum, phenomenon, read, reading, story, subject, tale, variety, work