Filtration advice please?

I have a 90 gal tank with 2 Aqua Clear 110’s on it . I like plenty of filtration and also like A.C filters due to very low operating cost . I was thinking of going over to a canister filter for this tank because I am thinking of changing over to salt water in about a year . Can anyone recommend a good brand of Canister that will be OVER the recommended filtering for this tank that has a low cost of operation ? Thanks for your time . Best answer will get points .