Do not buy a seat like that.

The excessive padding puts too much pressure on the soft tissue around the sit bones and taint, it'll cause numbness and chaffing during properly long rides and it's generally just bad for your junk's health.

You want a seat with firm padding raised at the sit bones and a relief or cutout in the center. You want it wide enough to bridge the gap between the sit bones and narrow enough it doesn't chafe or push your ass forward when you pedal. The more forward the posture on the bike the more important width becomes, if you sit more upright the saddle can should be wider.

https://www.sheldonbrown.com/saddles.html

From the linked article further supporting why you don't want a soft saddle.

"The "Two-Bump Problem" Imagine sitting down on a coffee table. Your weight is concentrated on the two bumps of your "sit bones", also known as the "ischial tuberosities." These are the parts of your body designed to bear your seated weight. Most cases of saddle-related discomfort arise because the load is carried on the soft tissues between the sit bones.

Imagine placing a soft pillow on top of the coffee table. Now, as you sit down on it, the sit bones compress the pillow, which yields until the sit bones are almost on the table surface again. The difference is that now, you have pressure in between your sit bones from the middle part of the pillow.

In the same way, a saddle with excessively soft, thick padding can make you less comfortable by increasing the pressure between your sit bones.

Many cyclists are unaware of this, and many saddles are made to appeal to the purchaser who chooses a saddle on the basis of how easily a thumb can sink into the squishy top. This type of saddle is only comfortable for very short rides, (though an inexperienced cyclist will often find it more comfortable than a better saddle, as long as rides don't exceed a mile or two.)

Saddles with excessive padding are also a common cause of painful chafing of the inner thigh, as rides become longer."

On my road and gravel bikes I swore by Brooks B17s which is actually the women's model but it has a cutout and was unbelievably comfortable.

Leather saddles are impractical and insufficiently padded for MTB generally so on my MTB I've be running the the SDG Radar MTN saddle that came with it and I've been quite happy with it, and that says something because being a Brook's guy I'm a bit of a saddle snob. Many people also seem to love WTB saddles which are decently priced. I also saw the older version of the SDG Bel-Air saddle for $37 on Amazon which is probably quite nice.

SDG Bel-Air, Unisex Adult's MTB Saddle https://www.amazon.com/dp/B01N3L2X0Q/ref=cm_sw_r_apan_glt_i_BST83HQKM7QNPT3CHRM5?psc=1

Hopefully others will chime in with more good suggestions including viable off brands or knock offs that're just as good.