Recommended Mobile E-SIM for Traveling in Europe

When traveling abroad, a SIM card is the first thing to prepare. Some people buy an international SIM card online in advance, while others rent a Wi-Fi device. Another option is to purchase a local SIM card upon arrival. Recently, e-SIMs that can be downloaded via an app have also become available. Having so many options is great, but the downside is that it can be confusing to compare them all! I have been living in Denmark and traveling around Europe, so I found the most cost-effective and convenient SIM plan for my needs. I want to introduce it here.