De Oro is my go to support for suction cups:
-Great durability, will last a lifetime
-Heavy duty suction cups will never need replacing unlike some other supports
-Suction cups have a really firm grip, and will not slip. Just keep them clean
-Suctions have the easy release tabs
-You can adjust the position of the suction cups to change the position/angle of the guitar.
-Compact and light will easily fit in a guitar case
-They don't have tilt adjustability but you can easily lean the guitar against you without a problem
For even more adjustability, I'd go ergoplay troster. It is however big and bulky and a bit more tedious to adjust and place on the guitar. Suction cups may also need replacing over time.
If you know someone with slightly smaller hands/arms, you can still consider the Barnett as a viable option. I have a tonne of tips on how to install them with ease if ever you decide to go this route.
"Success grants its rewards to a few, but is the dream of the multitudes.
Excellence is available to all, but is accepted only by a few." - Christopher Parkening