Orange Swan Event
Swan Bitcoin is a Bitcoin focused company that allows you to buy and save those sats via one-off or regular purchases via dollar cost averaging. The company is based in Nevada, USA and caters to US and International people who want to start stacking! The app also allows you to withdraw BTC manually or regularly should you so wish.
There are regular blogs shared on Swan Signal by some high profile writers and content creators in the Bitcoin world, giving some cool insights from a macro perspective around Bitcoin.
Regarding fees, they have a tiered system depending on how much you spend Bitcoin you buy so if you are planning on going large with your regular buying amounts, you will be paying less fees than someone who is going for smaller amounts. Full information on their fees can be found here.