Kindle was so worth it for me personally. Ebooks are by far the cheapest way to read so finding a device you're happy to read on is a good idea. All my suggestions are for eboosk.

Do take seriously what people say about library ebooks, call your nearest library and see how they can assist you or look on your library's website if they have one and you're already a member.

Outside of the library you should look at ebook subscription services. They're basically like a streaming platform like Netflix but for books. So none of them have everything but they all have a lot of options. I've never subscribed personally but I found the article below which rates them below. Its a good thing to ask for as a gift too, a couple family members could band together and get you a year of books for under $200.

https://bestwriting.com/blog/best-ebook-subscriptions