If you do get a second bunny, just make sure you're doing it for yourself, and not just for Lola's companionship.
Keep in mind it's twice the vet bills, twice the food, twice the cleaning, etc. There's also the potential that the bunnies won't get along, and may need to be housed and cared for separately, although from what I've read it seems that
most of the time bunnies will eventually bond, even if it takes a little longer.
Felix was a solo bun for about two months, until I decided to add Clementine to the family. He seems a lot happier with her around, however this was also around the time he was neutered, so it's hard to say how much of his behaviour calming down can be attributed to having a second bun around. They love snuggling together and grooming each other, and playing together. They both seem really happy. Felix never seemed
unhappy before Clem's arrival, though - his bunny 500s have definitely dropped since her arrival/his neuter, so perhaps he finds that with her around he doesn't need to just entertain himself as much.
My two are cautiously 'pre-bonded', since Clementine is a little too young to go in for her spay, but I'm crossing my fingers that their official bonding after her spay won't be too difficult.
I was able to time it well, as Felix's hormones were just wearing off when Clementine came into the house, and she hadn't matured yet, so I had no chance of baby bunnies surprising me.
I opted to go with a male/female bond, since I'd read that those tend to be the easiest to forge. Since these are my first rabbits, I didn't want to set myself up with something too difficult! If you go with another female, keep in mind female/female bonds are apparently the most difficult to forge, since the females can be quite territorial. Not impossible by any means, though.