My HD is chocking but I don't want to throw away culturally precious mataerial (mainly movies) - eviltoast

I’ve left wigh 10 gb in my hd, almost 300 gb in my hd are occupied by culturally relevant films (in hig deifinition) that in the future (I bielieve, and I’m afraid) won’t be so easy to find and thus I am reluctant to delete.

spoiler

Out of curiousity, some of the movies are: Fellini’s 8 and a half; Metropolitan by whit stillman; Lust; by Ang Lee; Ice storm by Ang lee; The Dresser by Peter Yates; Another woman, by woody allen;

I cannot right now buy and external HD (that in the long distance I will surely loose in the profoudities of a cupboard), is there any solutions, safe and cheap to keep them somewhere online and made them available to anyone somewhere that is interested to watch them?
Thanks to anyone who will want to help me. Have a nice day!