Hello there and welcome to the forum
The best way to bond with your rabbit is to get down to there level. So laying on the floor, reading a book while Fiona is out playing. Rabbits although naturally timid, are also naturally curious so will come up to you in time to see what you’re up to. If you just lie there and ignore her she will come up, possibly climb on you and just sniff out what you’re doing. If you let her do this a number of times without reacting to it she will learn that not every time she approaches you aren’t trying to touch her. It’s also easier to approach a bunny down at their level (at least I find they’re less likely to run away). Then you can just reach out and pat on the head, that’s the soft spot for bunnies
In terms of getting another rabbit, you’ll need to read up extensively on bonding. It can be better having two, but it can also be a lot of work to get to the point where they are living together happily. Any new rabbit will need to be housed separately when you bring it home, then you need to give it time to settle in, get it spayed or neutered if it’s not already and wait a month for healing and hormones to die down. Only once all that is done can you start the bonding process, which involves introducing the two rabbits on neutral ground (a room in the house where neither has been before) and have a very short, 1 minute bunny date where you put them down next to each other and just pet them. As the sessions progress in length and the rabbits seem comfortable you can move on to other meetings etc. It can’t all be explained in one post but it can be a lot of work. On top of that, there is no guarantee that the two rabbits will ever bond, most can be bonded, but some rabbits just don’t get along. If you adopt from a rescue, most offer bunny dates where you can take your rabbit to meet other rabbits and see how they get along.