In Palworld, obtaining a large number of high-level Worker Pals is usually quite troublesome, as it requires extensive map exploration to catch and breed them. However, if you want to avoid running around the map, you can use the Black Market Merchant. By simply purchasing a few Pals from the Black Market shop, you can continuously synthesize them to level up.
How to Breed High-Level Worker Pals with the Black Market Merchant in Palworld