Got a house last year and we started getting the DeWalt equipment. The batteries have been great and lasted long enough for us to get what we need done. There are different types of batteries and we have one of each. The 9AH is the most expensive, but is the best investment for the larger equipment imo. We have 2 drills, a weed eater, leaf blower, and pole saw so far. All have worked great. It's really nice that the same batteries power the various equipment. Wanting to get the sanders and circular saw next so we can start some deck work. https://www.dewalt.com/systems/cordless-platforms/outdoor-power-equipment We chose to go with a gas mower because our yard is just so big. Went with the Toro self-propelled recycler. It has also been great. More on reddit.com

Easy. EGO is the answer. More on reddit.com

Makita has a full lineup, pro stuff is husqvarna and stihl. More on reddit.com

When I bought my house I had nothing. No trimmer, no blower, didn't even own a drill. I decided to buy a Ryobi 18v trimmer/blower combo. It was on for a great price, plus I thought it was cool I could get drills and saws that work with with same battery. As the years went on, I picked up lots of other Ryobi tools. I think they are one of the best (if not the best) homeowner brand. I eventually got into the Milwaukee ecosystem as well. I still use both. I wasn't actively looking for a new trimmer, but was considering Milwaukee down the road. I got lucky and found a Ryobi 40v Expand-it string trimmer with a 4.0 battery for a great price. Decided to pick it up...WOW. that thing is powerful. I plan to pick up the blower and cultivator attachments down the road. More on reddit.com