Large water purifier (industrial) is the best one you can find in FO76. It needs to be placed in a body of water but it produces highest quantities of purified water, which is a very valuable item to have (for consuming as well as crafting). To obtain this plan, simply head to Camp McClintock and get it from the Overseer’s cache.
Medium power generator might not be the most optimal or strongest out there, but it will certainly get the job done until you get something bigger and better.
To obtain this plan, simply download it from Miguel’s Terminal at Morgantown Airport (in the hangar).