I'm not clear if you are looking for taxable income or just that income used for living expenses or sources of money for living expenses, so I'm not going to try to break this down by %. Not really interested in doing that anyway since I don't see using that information for myself.
QDivs off index funds is much of it.
A few years ago I sold off a managed mutual fund and put proceeds in Fixed Income and gradually used that base for living expenses, so I consider part of that LTCGs, and the rest return of capital. You can call it what you want, your thread.
Interest income, mostly from the above diminishing stash, so it's less each year.
A small annuity in my Roth which gets deposited monthly in my checking account. Less than 10%, and not taxed.
A small pension starts later this year and will be less than 10%.
I will be taking a large HSA withdrawal (using past receipts) this year, also not taxed.
SS will start sometime in the next 5.5 years, not this year though.
Until SS starts I will be selling more of my index funds and incur LTCGs/return of capital.
I may also withdraw from my Roth before SS starts, and later for large expenses if I want to avoid more income.