I think this is the right time to join/post on medial. Medial is a fairly new app with a clear purpose. There are a lot of high signal/low followers( meaning they provide valuable info but have low followers) account on medial right now, so the probability of someone you want to connect with replying to your dms is higher. This is probably the best time to ask your friends to join medial if they interested in business, because the app is still in it's budding phase and the environment on this app in general is just so focused on having conversations around business.
Download the medial app to read full posts, comements and news.