If you qualify as a real estate professional, rental real estate activities in which you materially participated aren’t passive activities. For purposes of determining whether you materially participated in your rental real estate activities, each interest in rental real estate is a separate activity unless you elect to treat all your interests in rental real estate as one activity.
One side note worth highlighting here – it is a common misconception that passive investment income earned within a corporation can be taxed at the lower small business tax rate. This is incorrect as passive income is generally taxed at about the same rate (over 50%), whether earned inside or outside a corporation, so there is no real benefit, per se, from earning investment income in a corporation. Rather, the advantage is that the corporate entrepreneur is able to temporarily invest the amount of taxes deferred by delaying the withdrawal of funds from his/her company.
Nobody gets early FI investing in bonds, CD’s, or even stocks unless they make a huge income or are extremely frugal or a combination of both. Paper assets just don’t provide enough returns. Business income can be great but it is typically not as semi-passive as I would like and there is a relatively high failure rate. That is if you can monetize an ideal to begin with. RE investing needs to be higher ranked IMO as a way that the “average guy” can become FI.
You don’t have to limit yourself to one or two solutions or vendors. Financial products are packaged by investment analysts and then sold by salespeople. Do your own research and find products that match your needs, instead of blindly accepting what your financial advisor loves – products that generate huge commissions for themselves at the expense of ignorant clients.
No one should turn down wind farming’s ultimate passive income for the next 30 or more years … even 60 years when there is a positive cash flow on the sum total of all base payments when computing inflation for the next 60 years based on the previous 60 years, as long as the next era’s energy resource is not perfected (at which time they would not renew the option for the second 30 years).

You’re at risk for amounts borrowed to use in the activity if you’re personally liable for repayment. You’re also at risk if the amounts borrowed are secured by property other than property used in the activity. In this case, the amount considered at risk is the net fair market value of your interest in the pledged property. The net fair market value of property is its fair market value (determined on the date the property is pledged) less any prior (or superior) claims to which it’s subject. However, no property will be taken into account as security if it’s directly or indirectly financed by debt that’s secured by property you contributed to the activity.

If you can max out your 401k or max out your IRA and then save an additional 20%+ of your after-tax, after-retirement contribution, good things really start to happen. If one is looking for earlier financial independence, such as retiring in their 40s or early 50s, it may be a good idea to skew towards more after-tax savings and investments given one has to wait until 59.5 to withdraw from their 401k or IRA penalty-free.
You’re personally liable for a mortgage, but you separately obtain insurance to compensate you for any payments you must actually make because of your personal liability. You’re considered at risk only to the extent of the uninsured portion of the personal liability to which you’re exposed. You can include in the amount you have at risk the amount of any premium which you paid from your personal assets for the insurance. However, if you obtain casualty insurance or insurance protecting yourself against tort liability, it doesn’t affect the amount you are otherwise considered to have at risk.
One of the most appealing options, particularly for millennials, would be #12 on your list (create a Blog/Youtube channel). The videos can be about anything that interests you, from your daily makeup routine (with affiliate links to the products you use), recipes (what you eat each day) or as you mention, instructional videos (again with affiliate links to the products you use). Once you gain a large following and viewership, you can earn via Adsense on YouTube.