What’s the best way for a guy to protect his wealth before marrying? Just in case things go wrong

I’ve read the creating a trust is a good way to protect personal and family wealth. I couldn’t find much details on the cost of creation/maintenance or clear pros and cons.

I want to know what all things can be done as a precaution to protect wealth? I also read that getting married legally in Goa is a better idea than other states. Not sure what happens if divorce is filed in another state.