+1 For Freewallet.io (not to be confused with that shady eth freewallet).
You can also go for
Counterwallet.io. I've been using it since I first heard about Counterparty in 2016 and invested a little. It's still a bit old-fashioned and cannot be compared to other wallets, but it does its job well. And you always have the latest version without having to update.