Mobile Internet for Travel

I am looking for a convenient mobile Internet option for traveling around the country and abroad. I would like to avoid roaming issues and be able to easily top up my balance. What options can you recommend?

When I was traveling around the country and abroad, I had constant problems with roaming, and often got big bills. But recently I discovered eSIM, which has become a great solution! Now, instead of messing around with traditional SIM cards, I just connect a virtual SIM card, and immediately get stable Internet. For example, now I am in Albania and connected an eSIM for Albania thanks to https://ohayu.com/esim/albania-al/ , the card connected instantly and without any problems. It is much more convenient than buying local SIM cards, and the price is cheaper than roaming. There are no problems with replenishment either - everything can be done through the application.