A tikka being a sub-commentary on a primary commentary, is by nature is applicable to that primary commentary.
Numerous primary commentaries have emerged over the centuries, from the most ancient Yoga Bhasya of Vyasa, to those of this year of 2017.
You may start at this site which offers no less than six different primary interpretations along side each and every single YS. Sutra.
These belong to the main philosophical school, but there are others such as the one that Bhoja subscribes to:
I gathered this info. quite a while back
Vyāsa line: Yoga-bhāsya of Vyāsa | Bhāsvatī of Hariharānanda Āraṇya | Tattva-vaiśāradī of Vācaspati Miśra | Patañjala Rahasya of Rāghavānanda Sarasvatī | Yoga-vārttika of Vijñāna Bhikṣu
Bhoja line: Rāja-mārtanda of Bhojarāja | Pradīpikā of Bhāvāgaṇeśa | Yoga-sūtra-vṛtti of Nāgojī Bhaṭṭa | Maṇiprabhā of Rāmānandayati | Candrikā of Anantadeva | Yoga-sudhākara
Vedānta line: Vivaraṇa of Śaṃkara | Rāja-yoga | Satyānanda
(A different) Six basic commentaries on the Yoga Sutra are:
Yoga-bhāsya Vyāsa
Tattva-vaiśāradī Vācaspati Miśra
Yoga-vārttika Vijñāna Bhikṣu
Rāja-mārtanda Bhojarāja
Patañjala Rahasya Rāghavānanda Sarasvatī
Bhāsvatī Hariharānanda Āraṇya
Beside these, there exist a number of tikas or expositions on each primary text.
I don't know what insights you might be hoping to find in these tikas, but I can assure you that none, ancient or modern, will make you any the wiser as to what exactly terms such as samadhi actually refer to.
While our minds are only around for a few decades. Our brain, that houses these minds of ours has been around unchanged for at least 100,000 years.
And while those ancient explorers have obviously uncovered all it contains, and told the tale - a detailed map of their discoveries is missing.
Thus we are left to voyage around inside our own minds to identify the 'things' those words refer to.
Our very own place is the one and only place where they can actually be viewed.
Again, that samadhi comes in not one, but four flavours, all apparently, being ordinary states, but.. what states?
Then there is the 'other' one - and most importantly - how to get there...
And that's only the first chapter...
So, we have to somehow stop the (inner) world in order to get off!
to stop:
to hold back from movement or action.
It's right there at the start on YS line 2!
But...
Per ardua ad astra
Taff Rivers