There are two basic ways to get a business / investor visa: the E2 and the EB5. Neither are well suited "to get a job" in the US.
E2 visa: the typical minimum investment with an E2 visa is around $200,000. But the biggest downside for an E2 is that it is a non-immigrant visa. You do not and cannot receive permanent residency with an E2. You must be a full time, active manager in the business, and you must hire at least some employees (2 or 3). If your business fails, you have to go home. If you retire, you have to go home. If your E2 does not get renewed at the whim of some immigration officer, you have to go home. If you have dependent children, they may not work in the US, and they must leave the US when they turn 21.
Also, if you do not have a demonstrated track record of running a business, your E2 visa petition may be declined.
EB5: with EB5 you and your dependent family members get permanent residency (green cards). However, the minimum investment is $1 million (or $500,000 if you're willing to invest in rural or low-income areas). This minimum amount may be increasing to $1.2 million.
With an EB5, your initial green card is conditional: within two years, you must demonstrate that your investment resulted in creating at least 10 new jobs. Otherwise, your green card will not get renewed.