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.
1. The final and most powerful form of residual income, in my opinion, is investing and insurance. Most people have 401K’s and IRA’s, so I am going to leave that for the investment side. Within that, I think our Foundation Freedom Phases is by far the easiest, safest and most powerful tool for several reasons: a. It is contractually guaranteed, so the terms cannot be changed once it has begun. b. It is truly residual because the cash-value growth is guaranteed and you don’t have to create, leverage, train, hire, rent or do anything but flow your money through it to get it. It requires no specialization or mastery, it’s just banking.c. Everyone does it. To survive, life requires you to bank in some fashion, meaning you earn money in some way, hopefully residually and you spend it. That will happen until the day you die. d. Our strategy takes advantage of that cash-flow and allows you to earn residual, passive, tax-free income forever. I can’t stress this enough. This is the easiest, riskless way to earn truly passive, residual income. e. Investing can be residual, but it takes more effort, skill, and planning. Further, there is the element of taxation and losses that take away and limit the consistent potential of our strategy.

That $200,000 a year might sound like a lot to you, but the median home price in San Francisco is roughly $1.6 million or almost eight times our annual passive income. For a family of three in 2018, the Department of Housing and Urban Development declared that income of $105,700 or below was "low income." Therefore, I consider us firmly in the middle class.

A good portion of my stock allocation is in growth stocks and structured notes that pay no dividends. The dividend income that comes from stocks is primarily from S&P 500 index exchange-traded funds. Although this is a passive-income report, as I'm still relatively young I'm more interested in building a large financial nut through principal appreciation rather than through dividend investing. As an entrepreneur, I can't help but have a growth mindset.
In equity valuation, residual income represents an economic earnings stream and valuation method for estimating the intrinsic value of a company's common stock. The residual income valuation model values a company as the sum of book value and the present value of expected future residual income. Residual income attempts to measure economic profit, which is the profit remaining after the deduction of opportunity costs for all sources of capital.