Most people who say they want to read more do not lack time. They lack a structure that protects the time from being eaten by phones, work, or housework. Twenty minutes of phone-scrolling becomes twenty minutes of reading easily once you set things up to make it the path of least resistance.
The biggest single change
Charge your phone in another room overnight. Keep a book on the bedside table instead. The first ten minutes after waking and the last ten before sleeping will turn into reading time without effort, because the alternative is across the house. That alone is over an hour of reading per week, recovered from doomscrolling.
The reason this works is not willpower. It is friction. Reading and scrolling are roughly equally pleasurable in the moment, and we do whichever is closer to hand. Move the book closer; move the phone further.
Reading in queues and waiting
The five-minute slots — waiting for coffee, riding the train, sitting in the doctor's waiting room — add up to substantial reading time over a week. Most people fill them with their phones. Switching even half of those slots to reading creates a real reading habit without requiring any "reading time" to be carved out of the day.
This works best if you always have a book in your bag. Not a book you "should" read — a book you genuinely want to read, even if it is light. The point is to make picking up the book the easier choice than picking up the phone.
The aspirational time slot trap
"I will read for an hour every evening on the sofa." This rarely works. Evenings are when willpower is lowest, the day is loud, and the sofa has many uses. Most successful adult readers do not read for hour-long blocks. They read for fifteen minutes here, twenty minutes there, and the daily total adds up to more than the planned hour ever did.
Audiobooks count
If you walk to work, do laundry, or drive on errands, audiobooks turn dead time into reading time. The literary purists who claim this is "not really reading" are wrong, both about the cognitive process (which uses many of the same systems) and about what the word "reading" actually means in practice. Use audiobooks where they fit.