Some dwarf lily is suitable for aquarium.
For your information, the difference between lotus and lily is the leaf form. Lotus leaf is a complete circle. Lily is a Pac-Man with a notch.
and this in the summer dress - Its a natural lit tank 90x35x35cm.
Thus don't be scared about lilies suitability.. They are extremely addaptable and pliable..
I went to Queen Sirikit Botanical Garden a couple of years ago, but I don't remember seeing these anywhere. I know it's a very big garden so easy to miss things, shame though, would have enjoyed seeing more
You said they can grow in low tech. Are they sustainable long term as my understanding they grow initially on stored energy. Also, are they tough texture plant like Anubias, or delicate and easily breakable. The long slender stem holding a huge leaf looks weak to me.