What type of dogs are best for apartments and are also hypoallergenic?

There are no hypoallergenic dog breeds.  There are no dogs that are specifically bred to live in an apartment.

No dog whatsoever is hypoallergenic

"Best for an apartment" comes down to YOUR willingness to train, socialize and exercise the dog.   If you're not willing to put in any effort, NO dog will be suitable.

Many breeds can be fine in an apartment if you are putting forth the effort...  And no, you do NOT "need a yard"..  If you have a place to toilet the dog, and access to a place to daily exercise the dog, a yard isnt absolutely necessary.   Most people with a yard just toss a dog outside and expect it to exercise itself anyways.

No breed is truely "hypoallergenic"..  Any breed of dog has the potential to trigger allergies.   The breeds that tend to shed less and produce less dander DO need significantly more grooming, however..  As they have the types of coats that tend to grow long and can easily matt if not regularly brushed and trimmed.

Poodles and bichons are generally well tolerated by most people with allergies.  Poodles are also the second smartest breed, come in many colors..  And come in 3 convinient sizes.

Greyhounds, if your apartment doesnt have size restrictions, make good apartment dogs.   They are 35mph couch potatoes.

I strongly disagree with having dogs in apartments unless the apartment has a back yard.  You cannot adopt a dog if you don't have a yard for it.  Best check to see if you can have pets where you live.  You can google 'hypoallergenic dog breeds'  & you can google, 'best apartment breeds'.  Pee pads are disgusting & will stink up the whole house.  Plus, by using the pee pads you give your dog permission to pee & poop ANYWHERE in the house he/she chooses.

NO breed is 100% hypoallergenic.  Dogs that do not shed AS MUCH (like poodles, or some terriers) are better for those with allergies since it is the SKIN DANDER that is usually the problem and dogs who have to be clipped or stripped SHED less dander.  You can GOOGLE a list of breeds best for allergy suffers.

However, many such dogs are too energetic and too prone to bark/YAP for apartments so the list gets MUCH SHORTER for those.  Some of the best breeds for apartments (that ALLOW dogs) are Greyhounds, Whippets, Italian greyhounds, Basenji, maybe King Charles & Cavalier spaniels but NONE of these are on the hypoallergenic list.  Poodles are HIGH energetic & the smaller the version -the MORE active they are, and the toy & mini can be yappy.

A hot dog. Ketchup too.