3 vs 2 isn't really going to make that much difference care wise. Feeding and cleaning is as a group, and one extra usually isn't going to make that any harder.
However, there are other difficulties to consider. Trios can be a difficult bond to maintain, and often either don't work out initially, or there can be a fall out later as very often two of the rabbits will form a close bond and the other will get left or pushed out. Now this isn't always the case. In some instances trios can work, but it's just much more complicated and more prone to problems than a pair.
There is also the problem with getting baby rabbits with future plans to bond. As babies, rabbits will almost always get along. But as they sexually mature they change, and even after getting spayed/neutered, the two mature rabbits may no longer be a good match personality wise, and may not even be bondable with each other. This includes just getting one of the babies now to bond later with your male. As she matures there is no guarantee that as an adult, she and your male bun will end up liking each other.
My suggestion would be to stick with a pair and get an adult rabbit at a shelter or rescue. Often they will already be spayed/neutered, which can also save you the expense and hassle of having to get it done, and in some places it can be quite expensive getting a rabbit fixed. They often will also allow bunny dates to help facilitate finding the right match for your bun. Male/female is usually the best pairing, but there are exceptions and female/female or male/male can also sometimes work out. It all depends on each rabbits individual personality. But typically it's best to have a dominant and a submissive match. Two dominant personalities is usually going to be a problem and won't work out.
https://rabbitsindoors.weebly.com/bonding-bunnies.html