Orthogon Partners, founded by former Two Sigma Investments executive Rishi Ganti, is soliciting capital for a private equity-like vehicle that would invest in “esoteric” assets globally.The New York firm aims to raise $200 million of equity for Orthogon Partners 2, whose investment targets could range from litigation financing in Brazil to small-business loans in Mexico to charter-school financing in the U.S. From 2008-2016, when he...