Anne Franks house is definitely worth it but very upsetting, it leaves its mark on you. Perhaps not good to do if not much time.
Do go to any of the well known art museums the art is breathtaking . If there is a special exhibition it is worth paying the fee, usual exhibits are all free.
Do have a canal boat trip with a guide telling you the history as you go.
Lots of lovely bars have a drink and a portion of bitterballen , little hot balls filled with creamy mushy meat or chicken on sticks with peanut sauce. Their apple pie is better than any other with masses of whipped cream.
Just walking is good interesting architecture and bridges over the canals . You can still see the “ladies of the night” posed in their windows in the day in a street opposite ordinary shops. Lovely China to buy not all of it delft although this can be bought anywhere and clogs to wear .
We lived in Holland for a while when my children were small I love it as a country , it’s very relaxed but be aware some of the coffee shops allow Dutch customers to smoke cannabis so don’t go there if it will put you off ( I never did I never tried drugs and hate the smell)