Welcome to the forum.
Running pumps 24/7 is usually just a waste of money so cross off that one. I think most use a simple on/off timer with multiple settings so it can be set to run a couple tiimes a day if desired. They are also by far the cheapest and easiest to install. I am not familiar with more sophisticated controllers so won't comment on them but I think for your purpose the on/off will be good enough. You can always upgrade later. Two speeds are becoming more popular and would be a good idea if you want to go the extra expense. On low speed you get better filtering because you're operating the filter well below it's max capacity and cutting your electrical cost too. For vacuuming and backwashing you have the high speed. The only disadvantage of the simple on/off is it lacks pump protection if the water level drops for some reason. You could run dry. That could happen if a hose blows for example. I suspect the more sophisticated controllers monitor this but am not sure. Then again, I don't recall anyone posting about ruining a pump this way in all my years on the forum. You'll get other comments I'm sure.
Your upfront homework will pay off.
Al
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