In the last two or three years I've had smallholding readers overload
Regularly buy country smallholding or smallholder and sometimes home farmer. Also have Kate Thears smallholder manual and Haynes smallholder manual as well as some poultry books ( because I was getting some ), sheep books and a pig keeping book.
My best advice would be to think about what you want from a smallholding. I helped on a large farm last year for sheep experience but LOVED the cows which surprised me and always thought I wanted a couple of pigs for meat but was nervous of the pigs
I was looking for anywhere with land but after reassessing what our family all want, can afford and can manage time wise I'm looking for a smaller amount of land to grow veg which I would really miss if I had bought land where we looked last year. And if there is enough land for some sheep then great but not essential as I also learned there is often land rentable.
I've also learned lots reading comments in this forum
HTH