Fertilizer for roses

What’s the best fertilizer choice?

I don’t use fertilizers at all and my roses are growing well.

Well, you can do fine without fertilizers. Your plants, in particular roses, will grow without it. However, with the help of fertilizers, you will prevent various diseases. Besides, your roses will bloom much brighter, more beautiful, and there will be a large number of buds.
I always buy organic fertilizers for my roses on https://www.growgardener.com/the-5-best-fertilizers-for-beautiful-knockout-roses/. I am a supporter of the fact that you need to take care of your roses and the soil into which this fertilizer falls. Thus, it seems to me that such fertilizers are the best.