If you wanna play them all, I’d just go release order:

1. Life is Strange
2. Life is Strange: Before the Storm
3. Life is Strange 2
4. Life is Strange: True Colors
5. Life is Strange: Double Exposure

Life is Strange 2 and True Colors are essentially standalone titles, you can do either of those at any time. There are minor characters from LiS 1 in LiS 2, and there is 1 major character from Before the Storm in True Colors, but knowledge of those characters’ backstories in the other games isn’t critical to knowing what is going on in those respective titles at all.

If you want just the Max and Chloe story, you can play LiS 1 and then Before the Storm, and apparently Double Exposure once that comes out.