Hi OP
I have used tons of different ones, so here’s my suggestions:
Hakka was a waste of money for me, didn’t get on with it at all, but lots of mums use it to help with let down whilst feeding on the other side. Plus it’s cheap.
Hand pump is great for the odd pump here and there, but not for consistent use.
Electric pumps are good, but the best one was the Elvie hands free, as the others meant I was hooked up to the wall for what felt like hours on end.
Elvie is expensive, and I wish I could have afforded to have 2. If money is no object, get them. Being hands free was amazing!! I pumped EVERYWHERE! It was fab. Total game changer for being out and about. Plus, no one can tell. You can’t exactly to cartwheels with them, but otherwise they don’t leak (if they do, email Elvie and they will send you new parts) and I could play with baby, do changes, make lunch etc.
Elvie also to a hands free non-electric pump similar to the Hakka now, again, these are expensive, but I think this would have been good for me if I’d had one early on, and I would have used with my other pump to help me.
Whichever one you buy, I recommend getting it from in store, boots stock most. I had problems with all of them at one point or another and it was easier to have to take them back rather than shipping back online.
For this reason, I also recommend having a spare. I opted for a cheap hand pump, and used the Elvie as my main one. If one breaks at 2am in the morning, that way you can still pump. Nothing worse than not being able to express!
If you’re not sure what to buy beforehand, a cheap hand pump will also tide you over until you have settled into pumping or b/f.