All of the WotC D&D conversions are well done on the Roll20 side. The biggest variance is the maps, as they all use the maps provided by WotC. Some of these official maps are very barebones. Of course, official adventures also vary in written quality. Below are some of my favorites: Curse of Strahd - easily the best Roll20 conversion. Includes custom maps of Castle Ravenloft designed specifically for virtual tabletop. The adventure itself is considered one of the strongest official modules. Tomb of Annihilation - the Roll20 conversion includes a map of Chult that is great to use for the hex crawl portion of this adventure. The official maps from WotC are vibrant and gorgeous, and really enhance this adventure. The adventure itself is good, if a bit un-even in pacing at times, and can be very linear if the death curse really pushes your players to focus on the main task rather than exploring. The final half of this adventure is a long dungeon crawl which really changes the tone and play-style from high jungle adventure. Waterdeep: Dragon Heist - one of my favorite adventures to run and probably some of the most fun sessions I've ever played, but needs some significant work from the DM to make sense of what is happening. Also, as written, doesn't include an actual heist despite the name. Lots of online resources are available to help restructure. Official WotC maps are very lackluster for this one, but there are lots of unofficial maps that are great you can replace them with with minimal effort. The Wild Beyond the Witchlight - One of the best WotC modules in my opinion. Very embracing of the carnival/fey themes, and definitely encourages role playing. Lost Mine of Phandelver - a classic at this point, and still one of the best 5e campaigns. Some non-WotC campaigns that are very well implemented on Roll20: Zeitgeist - epic steampunk adventure - still being converted to Roll20, 6 of 13 acts have been completed for Roll20 so far. Odyssey of the Dragon Lords - Ancient Greek flavored epic adventure from ex-Bioware designer. Really great! Empire of the Ghouls - Underdark adventure Scarlet Citadel - Dungeon crawl War of the Burning Sky - epic fantasy adventure path Crown of the Oathbreaker - Massive fantasy campaign