Multi-tenancy - What is the easiest approach for development stage

HI there,

I have been reading a bit about multi tenancy strategies and I would
your feedback/opinions as well.

I’d like to use the approach which is easiest on development phase. Our
goal is to have the product up and running as quick as possible even if
adds a bit (not much) on maintenance later.

What do you guys recomend? Single shared database or multiple databases,
one for each account?

Thanks in advance,