Oslo sept 28-oct-1 and Bergen oct 1-4 any help appreciated done set can’t change

I didn’t check dates or would’ve rearranged dates some. But are there any fjord cruises during the dates I willl be on these places. And what should I not miss I’ll have an 8 year old with me. And want him have a good time. Dates done set can’t change them. So any positive help is greatly appreciated it’s only time I could get off work I’d rather see it than not at alll. And what cruises or comapanies are still running and best ones affordable. Thanks