With a 90ish gallon display, then look in the 600-900 GPH range after head loss. ...or so.
Here is the basic conundrum. The most reliable ones are not controllable, but they do last - some of them for decades and decades of reliable performance. Most of these are AC - I like Fluva and Laguna which are made with Askol blocks which are super reliable. These will fit your budget no problem. Laguna Max Flow 1350 is about perfect. Fluval SP4 is maybe a bit much, but you can dial them down. There are other awesome ones like Ehiem and Tunze, but I am less familiar.
DC pumps (they are technically AC still, but people call them DC) have a bunch of options and you can dial them back to your ideal flow rate, but not a single one except for maybe Royal Exclusiv (out of your budget) have been around long enough to call them reliable. Many of the early models suffered premature failure with either the controller or unit and there are upgrades. It will be a while before you can determine if they are truly reliable, nor not.