What (personal) account do you use for real estate investing?

[Yixue Zhao]

Hello, I'm just starting out and I read that we should have a separate account for our real estate empire, which makes a lot of sense. I don't have an LLC and I'm wondering what (personal) account do people usually use for this purpose? A regular checking or saving account doesn't seem good to me, as this account can potentially have tons of money (my savings for the down payment, rental/flipping income, etc). I'm a huge believer in investing, so having tons of money sitting there with a super-low interest rate doesn't make sense to me. Is there any investing account that can serve this purpose where the money can be invested with better interests than banks, but very low risk? (I don't have LLC for now)

Thank you so much for your advice!