Is there a database of talent to be contract for work?

I am part of a small team of designers and developers that specialise in VR and AR content for the music and events industry.

We are also creating some non-VR simulations similar to Simcity.

There is going to be times where we need to scale our team up or down for projects.

I am wondering if this community has a database of all the modellers, designers, developers etc with their skills, rates and availability, so a team like ours could subcontract more easily?

If such a database doesn’t exist would anyone be interested in adding such info to a spreadsheet or something or joining a Facebook or Slack group?