This is the stuff I do for work, and there is so much to consider when you say “cloud” that it’s very hard to answer outright.
Depends what you want. Have you defined a list of requirements, must and desirable to have features? Are you looking for more of a cheap budget service or something that is actually enterprise level?
The big named providers are always going to be a safe bet (but you’ll pay for it) and you can get some free credit for most of them which you can spin some services and do some comparisons. See what fits best.