Well I just ran the 5E version of Tomb of Horrors for the group I was gaming with in Dawson Creek, so I could do that one quite easily. It would probably take about 4-5 sessions though, depending on gameplay. If anyone's play ToH before, or if that would be too many sessions, I could look for something shorter or more unique. There's tons of content on Roll20, so I should be able to find something.
Roll20 is browser-based and quite easy to pick up on. You have a character sheet in the app that handles most rolls with one click. The audio quality isn't great though, so most people use separate software for speaking amongst the group. I've been using Discord, but pretty much any audio conferencing app will work.