First of all, sorry for my English
I will start saying that some branch don't go with Microsoft vision or simply, they doesn't seems to add something to Microsoft, so, I add multiple lists for every purpose.
On the entertainment side. Microsoft have Mixer, Groove and Movies, but none of there have too many users. I think that Microsoft could make a really important ecosystem with specials plans or cross marketing, so I would suggest (I think that Mixer would be especially improved with this):
- Spotify. To run vs Youtube and Apple Music but more important, to add value to Surface branch
- Netflix. Movies isn't bad but Amazon is going further and so Apple, it is not the motive but a view of some " ideal ecosystem" by another branch
- Crunchyroll. You have Mixer and have Netflix, why don't add Crunchy content to Netflix and make it a "Game suscription"? well, no every gamer love Anime but why not?
- Discord. And add it to Mixer and improve the transmition with his Elixir server, the fastest by now (and let die Skype for domestic users)
With the games, Xbox is doing well but not enough, so:
- EA. I don't think it should kill the games for PS but make them "Xbox first". Don't loose market but make Xbox better choice
- GoG. Valve won't sell Steam, so GoG is a good step, but I don't know who owns it, but anything else is good to add it to store
- Another like Square Enix because the same that EA
- Do a dealing with DC to run vs PS and Marvel, maybe they have it, I don't know
In the multimedia side (and creators), Apple is doing it good and Microsoft... Adobe make some great software for windows and buying it don't add nothing for Microsoft but more problems, so:
- BlackMagic (DaVinci resolve). To improve "Movie editor" and "Photos"
- Wacom for the pencil and really good screens
In productivity, I think almost everyone think this:
- StackOverFlow. With Github and Linkedin plans, that would be the "3 greatest" of software and employees
- Blackberry. The "hub" on BB10 was the best thing I ever had in a phone. But it adds the security software, customers and of course, the device experience and branch including the patents
- I can't remember my other option, but keep in mind Discord system for Skype
Finally:
- Qualcomm. I don't think that AMD/intel add much to Microsoft, but ARM with Qualcomm would be a great option
- Another Chip startup to make processors better or smaller
- Another IA Chipset company for IA chips obviously
- For the sake of GOD. A marketing branch that just "do the right thing", please
- Fitbit and GoPro. For the band and Camera market. I think it could be improved with the surface branch