Hi Lisa
What a traumatic time you had with your outstanding Nyree passing away so young. So sorry. Gee, A Welsh Corgi is so different from a Beaceron. It pays to be very sure in your mind that a Corgi is the right breed for you and your ambitions with dogs in sport and recreational events.
I've only owned Pems but they are certainly one of the greater challenges of any breed to handle in the show ring because of the need to prick their ears up and look alive and alert - unlike less expressive breeds - yet not be jumpity or diverted.
My now three year old Taylor is outstanding in agility - he is the only Corgi, Pem or Cardi, in agility in New Zealand, but Corgis, easpecially Pems, are among the leaders in agility in the USA among the mini dog sections. And that's where I got my cue from. Corgis are also outstanding in tracking and of course, herding and can excell in obedience and flyball.
Training a Corgi requires patience and praise and reward. No heavy firmness or screaming - just moderate scolding when a mistake is made and always finish on a positive and a reward. Never hit a Corgi with anything. They are super sensitive dogs and can carry 'burdens" of guilt and grief for ever.
Corgis are busy, active dogs and thrive on lots of attention , diversion, challeges and exercising.
Here are the two major Corgi associations in the USA where you can find lists of breeders - generally they are the leading edge breeders though the Cardigan club has a better system than its Pem cousins for directing you to an established breeder. Their websites are:
www.pembrokecorgis.org and
www.cardigancorgis.com
There are three major breeders in NZ who export Pems all over the world. Let me know if you want their contact details