Just an update...I chose the Atomic wallet for my purposes, as it supports everything I mentioned except for iota.
I'm also leaving bitcoin in my electrum wallet. so I've gone from 7 wallets to 3.
Good choice for Electrum. It's one of the best wallet for keeping bitcoin. I've used Atomic wallet and I find it easy to use and somehow good as well.
And since you've already got your wallets, this thread has to be closed now and you can do it through locking it.