With rabbits breeds are not that important. Think of how big you would like your rabbit to be. They can be as small as 1 kg (dwarf) or as big as 10 kg (giant). Rule of thumb is that dwarf breeds (1kg) can be more skittish/fierce than giant breeds (5kg+), but you will always find giants that are bastards and the most friendly dwarfs ever, it’s not a hard rule. Giant breeds usually don’t grow much older than 5-6 because their size brings early health issues. Smaller rabbits can grow as much as 12 years, with some bunnies even making it to 18. Giant breeds need a LOT of space (not too sure how much though, I’m going out a limb and guess something around 4 square meters per rabbit at least?) while dwarfs are ok with at least 1 square meter per rabbit. But honestly, if you’re not going to keep a bonded pair (which means 2 square meters for your space), I would not house any rabbit on 1 square meter as it’s still quite tiny. I’d stick to 2 square meters even for 1 dwarf personally. Diet and vet costs usually go by weight so giants are again a lot more expensive than dwarfs. Most rabbits are between 1.5 kg and 3 kg.
Also think about the fur: Do you want a long furred rabbit, a short furred, or something in between? Also note that long furred rabbits (teddy, angora) need regular brushing and trimming to prevent knots and dirt build up. They are also sensitive to heat.
*Furthermore, what age would you like your rabbit to be? Baby bunnies are cute, but grow out of their aww cute phase very fast and are a pain in the ass the first year of their life. They will at first be so tiny that they can easily escape and you need to litter train them. Then they hit puberty, lose their litter habits and start exibiting hormonal behaviours such as nest building, honking, circling, nipping, riding, etc. You may want to have your rabbit castrated or spayed, the hormonal behaviour will go down when you do that. They are also very energetic. Furthermore, you won’t know what kind of rabbit you purchase. Characters of rabbits will develop with puberty, so your friendly baby bun (baby buns are usually always friendly) may grow up to be a skittish adult bun in the end. This is also the reason why you cannot bond baby buns; as soon as their characters develop they may mismatch and start fighting. Older rabbits (1 year+) have an established character, you know exactly what you’re purchasing when you get an older rabbit. You usually find them at animal shelters that will castrate and vaccinate the rabbit, which is a lot cheaper than doing it yourself. They are immediatly ready to be bonded should you wish and you can carefully decide on the character you wish to have along with litter and shew habits. In the animal shelter you may also find rabbit that have lived with dogs before and are used to it already.
Lastly, decide on a gender. If you’re going for a bonded couple, a castrated male and a female works best. Females don’t 100% need to be spayed, but some are very hormonal and onbondable when they’re not and unspayed females do have a higher risk for uterine cancer. If you go for a single bun, males may be friendlier than females but again this is just a rule of thumb. I’m sure there are arse$!&$ males and friendly females out there. Out of my 4 females and 1 foster female, I only had 2 that displayed typical fierce/nest building female behaviour (1 of my own and the 1 foster bunny).
If you know the answers to these questions, you know the right rabbit for you. Dogs were bred for ages for specific needs, thus usually have a character that strongely corresponds to the breed. This is not the case with rabbits. They are breeded for their looks (and in the past, their meat) so no breed really has a specific character aside from the dwarf/giant rule of thumb mentioned above. Thus, a mix/bastard may perfectly be able to suit your needs rather than a breed bunny (they are often healthier too because breeds often bring incest health problems or breed specific issues like sore hocks on Rex rabbits, the fragile French lop and the Flemish “German” Giant that is too big for their body to properly support them).
If you’re in Europe, Beaphar Care+ and Science Selective Supreme are the best pellets you can get at this moment (there are still debates going whether the grainfree pellets are better or not). Science Selective is 30 euros for a 10 kg bag and Beaphar is 40 euros for a 10kg bag. This bag will last you forever though, I’m still going through my very first bag I purchased when getting my rabbits and I got my rabbits February 21th. A cheaper alternative is Hopefarms Supertrio, which is also a good brand but a little more friendly on the wallet (I believe 18 euros for 15kg?). If you’re in the US, Oxbow Essentials seems popular but I have no idea how much that costs.
If you bring the rabbit home, put it in its home and just leave it be for a few days (aside from feeding and giving water ofcourse), so that it can get used to its new environment.
The last question depends on if you get a baby bunny or a bunny from a shelter. Shelter bunnies are checked by vets before going to new owners so a vet visit wouldn’t be needed then.
*Yes, I’m a strong advocate for shelter bunnies, haha! Shelters are overpopulated with bunnies waiting for a new chance and a new home and you can find all colours, ages (yes, even babies! Shelters may acquire pregnant females), “breeds”, fur types, genders you may want there. If you’re going for a bonded pair, they will help you picking the bunnies that go best together and help bonding them (or even bond them for you), or you can pick a bonded pair that already came in as a couple. Saves you a lot of headache!