If you cannot accept the risk of losing everything you invest via SeedBlink or waiting at least 3-5 years for benefits, the answer is no.
Unlike the trading market, the results of these investments are much more binary (complete failure or wild success), and no trading market allows you to easily redistribute your investment stake to another person unless the company is purchased or prepared for an IPO. We will strive to resell your side to other investors, but we cannot guarantee success.