Graded Readers was where I started, but they can be pretty pricey. I ended up only getting one of them, but it was still great for the time that I needed it
NHK Easy is a nice free one, and it has furigana if you’re looking for it. (There are also extensions to remove the furigana for when you’re ready for that.)
If you’re into manga, I 100% recommend checking some out. Many of them have furigana, and there are a lot of reading groups and threads on here for some already
Must recommend Yotsuba! Besides being a charming comic in it’s own right (this from someone who doesn’t really care to read manga much), seeing the world from a five-year-old’s perspective is perfect for where I am (and presumably you are) at. Sometimes the main character even asks for the definitions of things she doesn’t understand!
You’ll glean some cultural knowledge along the way too (like about kotatsu’s or matsuri’s) given the everyday setting of the story.