My recipe for perfect macarons (link below) is what I would consider to be as fool-proof as is possible. It has full step-by-step instructions and troubleshooting for perfecting macarons, along with recipe links for many flavours.
Click here for the recipe for perfect macarons.
Peach Bellini macarons
Jaffa cake macarons
macaron tower: with caramelised blood orange & cranberry flavour
Blackcurrant and mint macarons
smoked salmon & horseradish macarons
pistachio, lemon and raspberry macarons
blueberry & raspberry macarons
Ginger macaron snowmen
Bitter orange macarons
A full index of all my recipes can be found here.