Bustapalapano

The a6000 is actually still a pretty good camera to this day, but IMO the M50 is better, and the Sony kit lens is really, really bad. 

Ugh, the X-T100. 
 
I'll put it this way. Fuji makes a lot of great cameras. The X-T100 isn't one of them.

The a6000 is actually still a pretty good camera to this day, but IMO the M50 is better, and the Sony kit lens is really, really bad. 

Buy some 3rd party batteries and a charger that fits 2 of them. I only owned the thing briefly, but I remember the battery life was completely awful.

Just use your phone. Even if you got something in the used market the only advantage would be interchangeable lenses due to how well phone cameras handle now in comparison with what's available from about 10 years ago. Also, shooting on your phone is easy, using a proper camera takes much more knowledge. Not enough you can't learn in the mean time, but just enough for it to make the cost benefit tilt towards the phone.

My previous reply seems to have fallen on deaf ears, so let me reiterate, I have been into photography for the past 15 years, I have owned an a6000, a number of Canon dslrs and currently maintain a full Canon system with a secondary fuji xt2 system, after buying into it with the xt10 a couple of years ago, which would definitely be the only mirrorless system currently available I would ever buy, despite what the specs may suggest.
 
The m50 is a great little camera, don't get me wrong, but, the value proposition offered by an entry level dslr, especially the 800d, which punches way above its weightclass, is not one to ignore. The 800d is more reliable, has more features than most will ever need, is more robust, its battery lasts longer and has native compatibility with the most extensive lens system ever created, working with all lenses made since 1987. The used market is littered with great options, going for much cheaper than the systems you are talking about. 
 
Whatsmore, it is really not that bigger than a mirrorless system. It is definitely what you should go with for those reasons. 

@extraCrispy  I would agree that the BMPCC 4K is a great camera (Im an owner of one ?) but its really not a good entry point for what the OP suggested,  Its Auto focus is almost nonexistent and slow at that.  It has some amazing set of options for Cinematic use but its not a good option for corporate use and its not that cheep once you factor in things like needing fast media and having to buy lenses just to get started using it.