question for those of you that own medium/large dog breeds?

Dog Breeds and Training blog

im thinking about getting a medium/large dog breed i realize that large breed have their own needs just like every dog do but i think i cna handle it my dad was a newfoundland,sait bernard dog breeder for 10 years so he has experience iwth large dogs i thinking about new dog cuz my dog wa poisoned a week ago and i need to recover somehow but im not sure if i ready for new dog
i wa thinking about "mountain dogs" like greater swiss or bernese but i have no idea about those dogs ive read a lot aabout them from dogbreedinfo.compuppydogweb.com akc.org
or what are ur suggestions ??
thx a lot i appreciate it :)
im not worry about the room and exercise we have our own house and a very large garden so he/she will have plenty of exersice

Bernese are good dogs. They're goofy – really lovable clowns. If you know St. Bernards and Newfoundlands, you'll probably like Bernese and Great Swiss Mountain Dogs as well.