Virtual assistant for admin tasks? Which platform to use to find them?

hey, I'm considering a virtual assistant to do boring admin stuff like scheduling, data entry, sorting emails, maybe some invoicing.

I'm not looking to hire here, what I'm after is a platform where I can hire one or two. I've looked at upwork, fiverr, etc, but feels like they're oversaturated with new freelancers who are mostly unreliable. basically need a site that actually vets VAs so I can just pick one and hire without thinking too much about it.

also wanna know what rates you usually pay and how you handle training.