TLDR
Problem:
Alchemix only accepts native ETH and DAI
Solution:
Add Zaps
Details:
Alchemix is currently limited in the deposits that can receive to DAI or Native ETH.

While these are great options, they are limiting. So limiting in fact, it can't even accept wETH.
I hear you saying: "Reeserj, how lazy are you that you won't hop over to Sushi, do the swap and then come to Alchemix and deposit for some of that precious alETH?"
Me: "Yes. I'm lazy, but you know what? So are most users."
You: "That's true, so what do we do about it?"
Me:
"I'd like to propose adding a Zaps feature, like our friends at Zapper have. This would enable people to swap from common liquid pairs into ETH or DAI, and then deposit all in one transaction."

You: "Would we have to build this from scratch?"
Me: "This is DeFi, everything is composable, Yearn has implemented the Zaps feature for their vault deposits and they're our dear friends, I think someone would be able to point us in the right direction for implementing this into Alchemix.