SimpleSpeed

You can always use Wingits like these https://www.homedepot.com/p/WingIts-World-s-Strongest-Fastener-Standard-6-Anchors-RC-MAW35-6/202727991 to mount to drywall. They support up to 300lbs. 

On 3/14/2021 at 7:55 PM, pioneerisloud said:

Oh absolutely!  I can help!

Here's a tech tip.......

DO NOT EVER USE DRYWALL ANCHORS!  ALWAYS FIND A STUD.  IF NO STUD, USE 2X4'S ON THE STUDS TO MAKE A PLATFORM.

Yes, I had to yell that.  This was a very VERY sad and expensive loss.  I never even got to watch a 4k movie on that.  75" TCL 6 series that I had owned less than a month.  It took it literally 5 hours to fall off the wall.  Was late at night, so I had absolutely no assistance to pull it down safely before it fell.

You could use Wingits drywall mounts (like these WingIts). They hold up to 300lbs. I've used them to install grab bars in bathrooms, a water fountain to a wall, and multiple 70+ inch tvs. Obviously a stud is always preferred, but sometimes it just doesn't work out like that. 

As for the OP, a 2x4 across known studs would probably be the safest bet