If you're one person
Todoist ($5/mo, $60/yr) remains the fastest natural-language capture on the market — type "gym tomorrow 6pm" and it just gets it. TickTick ($3.99/mo) does the same plus habits, a Pomodoro timer and calendar views bundled in, arguably the best value in the category. Things 3 is the most beautifully made of the three, a one-time purchase (roughly $80 across Mac, iPhone and iPad) if you're fully inside Apple's ecosystem and never plan to leave it.
All three are genuinely good at the thing they're good at: getting a thought out of your head before you lose it. None of them will tell you the list you've built doesn't fit in the day you have.
If you're a small group
This is where most "task management" roundups quietly assume you mean a real company with a project manager, and point you at Asana, Monday.com or ClickUp — tools genuinely built to be reported on, with dashboards for a stakeholder who isn't doing the work. For four people who mainly need to know what each other is up to, that's a lot of structure for a small question.
Fuidzy's answer for a small group is a Clan: a shared timeline with eight separate privacy levels, so each person controls exactly how much of their day anyone else can see — down to "just tell people I'm busy" with no detail at all. You can see when everyone's actually free, ask for help on a specific task and have it sync back, or send a private note to one person, all without a channel, a status meeting or a chat thread nobody reads back through.
The thing most task management comparisons skip
Whether the tool knows what a day physically holds. A list — solo or shared — will cheerfully let you (or your whole group) commit to more hours than exist. A timeline where a lane holds one thing at a time refuses that by construction: overlaps get caught at the moment you'd create one, not discovered at 4pm when something was quietly never going to happen.
Solo, fastest capture → Todoist or TickTick. Solo, on Apple only, one-time price → Things 3.
Small group needing visibility, not a dashboard → a shared timeline. Real company needing reporting → Asana, Monday or ClickUp — that's genuinely their job.