Whats a good way to display very large plants indoors?

use different heights of plant stands

Put your plants altogether, or spread then around. If their altogether, put them on different levels of tables, bricks, wood, ceramic, and glass. Good Luck!

I have them on plant stands. I have a couple hanging and a bunch on tables throughout the house.

In groups

In groups... plant stands on different heights, trailing plants high up , bunch small ones for increased humidity among them . Make sure they have drainage but need saucers or cache-pots so they don't drip on floors. Use indoor outdoor carpet rugs for protection Of floors if needed. Don't feed until Spring

Corner grouping with can up light behind them, be sure to have decorative pot and matching saucer so they dint leave water marks to the area you choose. The same idea near a window if those need light.