I would be careful. How many people have listened the Kinda Lava? I have the feeling that they are recommending them without even actually have tried them.
I would be careful with the hype trains. The IEM community seems to be very prone to them. You have the Timeless, they were the last big hype on the community, and it seems a win for you, but I just warn you to be careful.
In particular, here in the Hifiguides forum, I would say that there’s a clear bias in favor of HBB tunned products. In part because he is active in the forums, he is a cool guy, and his previous colaborations have been successful, like the Mele and the Olina. Now it seems it’s Kinda Lava time…
But if you are new into the hobby I would say to you: “enjoy what you already have” . Enjoy your time with the music, with the Aria and with the Timeless. Don’t dream about how your music would sound with different gear. Play with them, listen different music, play with tips. Instal Wavelet or other EQ and play with it to find your preferred tuning…
In your next steps you will be spending a considerable amount of money and I can assure you that you will get a minor quality jump than what you already have experienced. So, from now on, your preferences are much more important, before more money usually meant better quality, now it’s not that clear, that’s what happened with yours Fiio. There’s not “this is better than that” at this point a lot of times is different ways of showing music. So it is more important to be informed, watch reviews, read forums… And, again, be careful about hype trains.
So, having said that, if you say “shut up, money is not a problem, I want to try something better”, then I would go directly for the Monarch MKII. I don’t have them, but they have already been tried by a lot of people, and the general consensus is to consider them a worthy top of the line IEM . I have the Clairvoyance and the MKII seem a better version of them. So I would say that they are as good as an IEM can be…