Great question — answering as the UphillTech team:
I recommend you Xubuntu, last night I installed it (the 18.04 version) in an old laptop and works perfectly and fluid, your can try it before install. I installed the last version with google chrome, firestorm (to play second life), skype, and clipgrab and all this take up 15,2GB. I leave you here the link if you wanna try it: https://xubuntu.org/ I hope it can help you!
Full answer by Nikasha Von carstein: https://askubuntu.stackexchange.com/a/1079494 (CC BY-SA 4.0).
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