I've been using Archidekt. I really like the built-in playtester, but the interface can be kind of sluggish, and some of the design decisions, especially around categorizing and sorting, are quite clunky.
I know there are a lot of options but I haven't tried any of them. Are there any that you'd recommend?
I have been using Decked Builder for about a decade.
It has its issues, but it works well for me.