What finger foods would you suggest I try first?
Really there is no limit to the foods other than the normal things one avoids with young children (no honey, no sugar, no whole nuts (or other small round objects due to choke hazard), no raw fish, low salt, for girls a limit of no more than 2 portions of oily fish per week. Hmm..I think that's it off the top of my head). You can just offer her a piece of whatever you are having, the great thing about this is fewer different meals to prepare, just hand her a bit of whatever you are having. The other positive aspect is that she has already been exposed to the flavours of your diet through your breast milk so whatever you've had should in theory be fine for her
However, if you feel you are more cautious than this then how about start with some of the foods she has already had?
large wedges of:
sweet potato - steam or oven bake, oven baked is easier to hold, the outside is dried the inside super soft
butternut squash
apple and pear - can also be lightly steamed (no time at all for pear, watch it or it will fall apart) or oven baked in wedges
fresh mango is fine in a large wedge, as it is slippery I suggest cutting it in crescent shapes or zig zag (like a crinkle cut chip) as the curve or zig zag gives an anchor point which is easier to fist grip.
pasta if you want to introduce carbs, again the shaped stuff helps, something like spiralli or twists is easier to grip than penne (spaghetti can be hilarious but also frustrating for some LOs). I would probably offer it 'dry' initially as this is easier to pick up, but you can also put some sauce on her plate for a dip if you wanted.
You will quite quickly get used to how to prepare the finger foods for your LO. Bare in mind some LOs never have purees, they don't need teeth to eat all sorts of foods but will chomp away with their (very hard) gums, even on hunks of meat.