Thin or softcover sketchbook recommendations

Getting back into working in sketchbooks this year and have been really enjoying it, feel like I’m getting closer and closer to having a set of materials that I can easily take with me anywhere I go, the last puzzle piece is sketchbooks, I’d really like to try out some thinner books that are flexible, I tend to primarily work with ink in a variety of colours and gouache on occasion so something that can take a beating would be ideal

Any recommendations or advice are appreciated