If you're just starting out, more kamis might seem enticing, but that's a very short term problem. If you plan to go anywhere with this game as a f2p (and not just use it for the hentai), you need to think longer term.

In the long term, the game will throw you tons of jewels that you can use to get many of the SRs in the game (and that's probably all you'll get with those tickets). That's not going to be the problem, you'll have your SRs (except some of the limited ones that you can't always pull). The problem will be trying to get a good enough grid to make those SR kamis good/competitive, because you won't have your pick at really powerful SSR kamis (you'll get some, but it's all RNG). Because of this, I'd highly recommend prioritizing on your grid even more, because that's the one thing you CAN control. A powerful grid combined with a friend 100% eidolon (even better if you rerolled your own) is basically the key for a f2p to get through the harder content.