I tried the Sig Romeo 7 + Juliet 6 combo, kind of fun to shoot, but not suitable for airguns shooting multiple distances, the fit and look was great. I sold the Sig kit.
I tried the IO 14x50 on my Leshiy2, the glass was fantastic clarity, but fitting the scope on the gun and fitting that gun in a case - that was difficult because of a weird shape. I sold that IO.
I tried a Vikoptics LPVO 1-5 on same L2, I liked the combat reticle also fitting the gun in a case was much better, but could not get used to a low power, I sold it.
I have now a crossbow scope (TenPoint 1.5-6) on same L2, I had that scope laying around so just trying it now. Kind of works OK for short distance fast moving - squirrels and fits both the gun and the case best, this is a smallest scope I had so far. I will keep it for some time, until next.
But, when I am at my gun club shooting LR22 silhouettes, I have a keeper FT scope for that as well. Nikko SFP 8-32x60 Diamond Nighteater, and with that scope I can see the POI at 100 meters. But the scope is huge as the L2, I cannot store it in a case mounted, so I remove when not at my range.
Edit: I got derailed before finishing my post, back again.
So far the best glass clarity was the IO but a worst mounting on L2.
Read dot or holographic no bueno for multiple distances.
I would go back to IO any time if they release a longer eye relief scope.
I think if the Leshiy2 PL (pull length would be shorter for about 2" many scopes would fit more comfortably for storing.