eSIMony is a provider that operates worldwide, but is really only of interest for destinations outside the EU.
In terms of pricing, eSIMony falls in the lower mid-range. It primarily offers fixed data packages of up to 50 GB at quite reasonable prices, and for some regions, there are also unlimited daily plans. eSIMony is exemplary when it comes to transparency—you’re told exactly how much high-speed data you’re getting and what speed you’ll have afterward.