If you look just at how small the shaped charge inside the NLAW is, and how the weapon works, I wonder why you wouldn't just put that shaped charge inside a $50 drone and fly it directly above the tank.
Examples (NSFW-ish, Thermal imagery of tank cook-offs):
1. https://www.reddit.com/r/CombatFootage/comments/ug39y1/drone...
2. https://www.reddit.com/r/CombatFootage/comments/u29rdx/ukrai...
There are also a lot showing anti-personnel grenades, and even RPG rounds being dropped on people, and regular cars etc. too.
Switchblade 600 has a shaded charge based on a Javelin one.