Your phone doesn't support eSIM?
Don't buy an eSIM for a phone that cannot install it. You still have ways to get connected.
Buy a local SIM on arrival
Check that your phone has a physical SIM slot and is unlocked. Compare local operator plans, registration requirements and opening hours before travel.
Use a travel router
A portable Wi-Fi router can share a connection with your phone. Check its SIM support, destination networks, rental or purchase price and data allowance.
Borrow a hotspot
A travel companion may be able to share their mobile connection. Ask first and check their plan's hotspot allowance and roaming charges. Your phone must stay within Wi-Fi range.