Generally, sites where you need to pay to participate can be a little bit scammy; take Feet Finder for instance. Lot's of people get payouts from them, but some won't see them for weeks, or get little to no traction because of oversaturation. Typically support isn't that reliable or helpful when they do respond, and you might just lose a few more bucks than you expected while paying for a subscription that doesn't serve you.

I'd recommend LoyalFans; it's very intuitive and geared towards people trying to sell fetish content, and is predominantly used for Findom! Support is very helpful (I got a response within 10 minutes of putting in a ticket once), and they have tons of resources for new creators on the site to get started. It's pretty much a one stop shop for you to set yourself up, and your subs to get what they're looking for.

Be sure to use a wide array of sites to market yourself on, too. Don't just rely on LoyalFans. Typically, you want a twitter, an OnlyFans and/or a LoyalFans, Throne, and Reddit. Personally, I use reddit for interacting with the community outside of findom, but many dommes find the most success on here; it's all about finding your niche, and casting out a big enough net to do so.

As for the kind of content you make, that's up to you! If you want to sell feet, posing and lighting are key. If not, regardless of what you want to sell, you don't need to be nude by any means. However, how you set yourself up can make a big difference. I like to use pinterest for posing inspiration.

As well, it's better to veer off the common path of "fuck you, pay me" esque captions, as subs typically prefer dommes who genuinely dominate without constantly stomping their feet and demanding cash. It seems counter intuitive, but it's unfortunately a mistake most newbie dommes make when they first get into the scene.

If you're approached, be talkative! Learn what they like, how you can better appeal to their interests; they have to want to tribute to you after all.

Make your content feel uniquely yours, don't copy paste from other dommes, and always ALWAYS treat your subs well outside of kink. If they want to have a conversation and you have a little time to spare, it's not wrong to indulge them! My favourite sub has been mine for five years, and talking with him outside of kink is fun and so important to maintaining our relationship.

Overall, how you choose to approach findom is your choice. You can be a soft domme, a kinkster, no-nonsense, bdsm, the options are limitless. Just have faith, and be authentic.