I use the Loop Loc II mesh cover.
It does what I need it to do, and works well. Actually had a nephew run across it one fall by accident. His feet got a bit wet, but he didn't go in.
When I have to replace, or if I had to do it again, I might look at the Ultra Loc (made my Loop Loc), which is a hybrid of a solid and mesh cover. Most is solid, with a mesh drain panel do allow water to drain.
There are plenty of other brands out there, but I have had no experience with them.