For all the leupolds the best are the alumin covers. No other option IMO.
Teneabreax for the rest, if they make them. Not all scope models covers. If you research a bit, you can find covers by diameter that should fit scopes not listed. A bit time consuming, but works.
The only other option worth mentioning that works are the 3D printed ones. Guy on gu n po st makes and sells them. I have 2 sets. They are okay, work well, snap open and closed well. Great magnets. Just give a bit more of a tunnel vision when using them, but better than nothing.
The butler creek I quit using years back, as they just plain suck. The vortex ones are okay, but who wants to have the Vtx symbol on a different brand of scope anyways. Looked cheesy on my NF before I went tenabreax covers for it.