I would like to know if it's possible to create a company specialized in lending to trading platforms (funding on Binance, Bitfinex, Bitmex, etc) and if I would have problems reporting income knowing that interests may vary from 8 to 16% APR and that it depends entirely on the market situation. Of course, I'm talking about doing this in crypto-friendly jurisdictions, I'm interested in Estonia since everything can be done online thanks to their e-residency. Also, do you have other jurisdictions to suggest?
You can choose to headquarter the business in a location that can be friendly (and give a lot of incentives and breaks) to crypto-related enterprises and I am sure there are now many countries (especially small island states) very accommodating and welcoming new investments into their locations. I can mention countries like Belarus, Slovenia, Liechtenstein and even Malta, headquarter of Binance, just to name a few. There is a big market with the lending/funding idea that you are thinking about and I think there had been some good projects on this industry, some of them even went ICO in 2017 and 2018.