Trying to build a generic fertilizing schedule, needing some help.

Long story short, my in-laws have always used a “program” from a local seed and fertilizer dealer which has now shut its doors. I’m hoping to help build them a new program using products available to them from SiteOne. I’d love to be able to use this program myself, honestly, as I no longer have the time available to dink around in the grass like I’d like.

Obviously we’re looking at something generic like:

Spring: light feed with pre Early summer: light feed with grub control Late summer: heavier feed heading into fall Mid fall: good lick of nitrogen Late fall: winterizer

Any good, reliable products at SiteOne to get this done? Zone 5b for me and 5A for the in-laws (Nebraska)