Have you considered buying an up-to-date garden veg " Expert" book by DG Hessayon ( or similar name ) they are in all the big garden centres and are available second hand on line. A new one is about £12 , second hand can copies can be had for pennies on Amazon etc.
The newer the book the more up-to-date the seed varieties it will reference .. there is plenty of info of how to do things in them , but the most important thing I use is a whole list of veg & herbs etc. you can grow in the UK with plenty of info drawings &b pictures about each one .
I found that these " EXPERT" books are far cheaper & informative than a glossy mag that sells ads and little else .
The expert range of books cover fruit , veg , flowers , bulbs , cacti ,tomatoes , greenhouses , ponds etc etc.