Yeah, the one’s off sipeed’s site should work. I’ve never used it though, I basically built my own, tiny LFS image for it. Also, keep in mind that if you get a Lichee RV, it will be significantly less powerful than the Lichee 4A. It’s based on the single-core Allwinner D1 CPU and only has 512MB of memory. It’s a fun little board though!
Edit: Just wanted to clarify: I have no experience with the 4A, only the RV model. I wish I did though. It looks pretty cool!