Regis and the Ciris are not good crafts for a new player. Regis is pretty awful most of the time compared to other golds, ciri dash requires a pretty specific deck, and normal ciri also generally only wants to be played in control. Gigni is the way to go if you're looking for the all around best neutral card, no other neutral gold really comes close as far as being universally good goes. The runner up to that would be Yennefer (the 6 strength one, not yen conj). Yen is more specifically good in this meta though, so you might not get as much mileage as you would from Gigni.
I think an interesting option would also be to look at some faction specific legendaries instead. The best advice for a while was that neutral crafts were always something you should go for first, however with all of the neutral gold nerfs we have seen I think faction-specific crafts are a lot better than they used to be. Monsters is probably the best faction to look at for a cheap beginner deck, unless you've got another faction that's really well developed. I'd consider crafting Ge'els as he has been a consistently good gold for quite a while now. You can make something similar to the deck below. The nice thing about monsters is the golds and silvers really don't matter that much, so you can really swap in and out for whatever you happen to already own. This should get you up to 2k MMR at least and you'll have some more kegs to work with then.