How can I utilise my all remaining daily internet Data?

I get 3GB of data daily in my data plan.(can be 4-5 gig daily if i have other family members, they don't use net much, so they dont have any problem if I use their data) Sometimes, I can't utilise it fully(eg. around 1GB or more will remain), and it goes to waste. I have watched and downloaded few movies(mr nobody, mad Max series, frida, ad astra, ...) and series(breaking bad, devs, cowboy bebop, daria, love, death + robots, ...) played many games (metro redux, saints row 3, sunset overdrive, factorio, rimworld, botanicula, prison architect, to the moon, the wolf among us, manifold garden, superhot, just cause 3, bioshock 2, dishonored, aoe3, ...) watched courses on edX, downloaded some courses from academicTorents.com (data structures, ambient intellegent, recommended system, OS) tried few OSs(haiku, akaros, ghostBSD).

Is there any way I can donate my data for some scientific or other purpose. like running BOINC server programs like SETI@Home; but that doesn't consume a lot of data.

suggest me anything. mostly something useful like a good course/seminar or a puzzle game. or a game with interesting story or gameplay, any awsm movie/series you found(whatever genre)