There were plenty of ways for Wang Che to earn money.
However, they would require him to awaken his martial soul and cultivate his soul power first.
Besides that, he could also modify the Beast Origin Skill to develop a Soul Guiding Skill, and apply for patents. That would allow him to bring in even more income, since this particular skill was a valuable soul pet cultivation technique.
In fact, even a normal soul pet's Soul Guiding Skill could easily be sold for tens of thousands of dollars.
Having such a precious item in one's possession would naturally attract the greed of others.
At Wang Che's current strength level, improving the Beast Origin Skill or other cultivation techniques to create a Soul Guiding Skill suitable for other soul beasts would only cause him trouble.
He should be careful not to make any enemies for the time being.