I've never had a problem with blight in first earlies, they have been harvested before the problem occurs, and rarely with second earlies, except for 'Kestrel' which I leave in for about 20 weeks if possible, it then produces some lovely baking spuds.
This year I'm planting
Sharpes Express, First early a waxy salad type
Charlotte, a Second early, again waxy, you can pick a few bigger ones as earlies and leave the others to grow on.
Kestrel, Second early, good for storing.
Juliette, Early main, waxy salad type, I had to pick these early last year because of blight.
King Edward, Early main, good for storing, excellent for roasting, mashing and chips.
If you don't have a lot of space, avoid early main and main crop,these take up a lot of room and can be bought easily enough from shops and supermarkets, farmers seem to grow for quantity rather than taste in the new(early) market so this is where the home producer can do well.