I think neoboxes are coming in this month, so in a few weeks when members have tested them out you could maybe get one of those.
MakerX is pretty untested, but some riders have them and are reporting no problems. I would look into the mini foc plus, it is based on vesc 6 hw.
You can also always buy used focboxes, they go for like 100-125 dollars each and are amongst the most reliable ESC’s.
If you are really patient and have time to wait, you could wait for the “unity 2.0” which is made by the makers of the Unity as well as lacroix, under the name: Stormcore 60D. It will probably be around 300 dollars as the unity, however this is only pure speculation from my side.