There is the cruciformer which is usually in stock regularly.
I'm just going to be honest and say I wouldn't even recommend box switches if you don't already have them. I got some retooled box jades towards the end of last year which should have seen multiple revisions at that point and not even needed shaving, but I was paranoid and got the cruciformer and used it just to cover my bases. Fast forward to testing a few sets on my board, all gmk/jtk sets that I very much really liked before I realized that my stems were being cracked and I thought it was just click bar rattle or something as I was putting some caps on.
I pretty much gave up on my interest in keyboards for months after that because I was so mad.