Best Serums to Use When Using Tretinoin

I have been on my tretinoin journey for over 2 months at the moment. I’ve been very careful to not over complicate my skin care routine and to only use simple and hydrating cleansers and moisturizers (and of course physical sunscreen during the day). From my observations, my skin has made great progress since I have started. It is certainly not perfect and I still have a long way to go, but by far it has improved which I’m quite proud of. I would like to give more to my skin by including some serums that will help with hydration and hyper pigmentation, but I’m not sure what products to use. I’m also not sure how and when I should integrate the serum/s into my routine. Would it be better to apply them at night or in the morning? If at night, should I apply them before or after my tretinoin treatment? etc., I have also bought some serums that I didn’t get to use yet and I was wondering if some of them would go well if I incorporate them into my routine, but I am also open to other suggestions:)) I will attach the serums here. Does anyone have any serum recommendations and helpful tips in how I should apply the serum into my routine?