Hello Anne! I too was asking this question when I first started riding, and there’s just no “best” saddle for everyone or a one size fits all.
I think you hit on the key phrase in one of your comments when you said what’s the “best saddle for me?” It is truly subjective since every rider is different - from their unique anatomy to their riding style, age, gender, etc. Way too many variables.
You will find everything from glowing reviews to very negative reviews for almost every saddle. Personally my current favorite is my QX Eleven. I’ve also tried the KH free ride and the KH Fusion One, which I just couldn’t stand. Maybe I didn’t give them enough time to get used to it…
I too am very curious about the nimbus air saddle and the air saddle cover. Mixed reviews here as well from what I’ve read. It’s absolutely best if you can try them out first. However I, like you, didn’t have that option and had to simply order some based on others’ reviews. I’ve returned saddled that I didn’t like. Not ideal but that was my only option.
This forum is a wonderful place for questions like these and there is so much knowledge to be gleaned from the wisdom and experience of all those who share our unique passion. I hope you find your perfect fit! Happy riding