Recommend me a plant for a present

It's my boyfriend's birthday next month and I wanted to buy him a plant he hasn't yet got. Currently we have:

• Lots of monsteras
• Syngonium
• Pothos
• Jades
• Snake plants
• String of hearts
• Ferns (staghorn, blue star, boston)
• Peace lilies
• Rubber plant
• Tradescantia
• Spider plants

He particularly likes monsteras! But if there are any relatively easy to care for, or 'essential' house plants that it sounds like they'd fit well with what we already have I'd love to hear. Our house is pretty shady but there are certain areas that get a bit more sunlight in the afternoon. Thank you :)