There are many different kinds of lithium batteries, and each has its advantages and disadvantages. They also have specific areas they perform exceedingly well.
So, your power requirements, safety tolerance, budget, and application will present you with the best choice that will suit you.
However, we can say that LiFePO4 (LFP) batteries are the safest ones with a thermal runaway threshold of about 518 degrees Fahrenheit (270 Celsius).