As already mentioned either of the Corax or the Momentum kits would be a good starting point and both will give you a lot of value. I know folks with climbing experience in both harnesses and which they prefer seems about evenly split. Like Hikermor, I started with a tied rope harness in an Army mountaineering school back in the 1970s and can attest that modern harnesses have come a long way in the last 45 years.
If possible, a visit to a store that stocks both harnesses while wearing the clothes you expect to climb in will be very helpful. It would also let you see if you have a preference for which harness has adjustments that suit you and which "just feels better".
I'm assuming that whichever type of climbing you are starting out with that, for now at least, you will be with more experienced folks and using their ropes, cordage and hardware for now. If so that's a very good thing as you can learn some without feeling like you need to buy everything at once.
Other than a good basic helmet and a harness I'd advise holding off for now on any climbing specific stuff like shoes, clothes, ropes and hardware until you have a clear need to satisfy. And try out various stuff along the way if you can. That will give you a better chance of making solid choices and of knowing what and how you want to climb and what your level of financial commitment will be.
You can climb top roping or many sport climbs just fine with a fairly basic kit and a good rope or two or you can drop thousands of dollars in gear so waiting until you know for sure what and why you want to expand your gear collection can really cut down on the final cost while ensuring that you have what you really need.
Good luck and I wish you much enjoyment in your new adventure.
Best regards to all,