Marketing suggestions for a service marketplace?

Hi,
it's time to grow for Techlend, and get rid of the chicked-and-egg problem with some good sales... so need some help from you, IHs!

The focus is tech and academic micro-services consultancy/outsourcing (including data analysis, science coding and product development): what are your suggestions to connect with potential customers? Just answer the poll below or post a comment (much appreciated!).
Thank you for your hints,
best

p.s.: yes, IMO the initial freelancers population is ok, being 10+ at full speed.