Here are a select few offers that could benefit you (and me) if you were interested in opening any accounts. All of the below accounts are free to open, so you could, for example, use the free €5 sign up bonus with Bondora to test out the system without putting any money down.
I have listed the bonuses you can earn and the estimated rates of return below.
Some of the platforms (like Kuetzal) utilize promo codes that can be entered directly into the registration forms.
| Platform | Offer | Estimated Rate of Platform (%) | Validity | Link |
|---|---|---|---|---|
 | Register with Mintos for a 1% cashback within the first 90 days of registration. Mintos Review | 11% | Ongoing | Click here |
 | Register with Bondora and you get a €5 sign up bonus. Bondora Review. | 11% (8.86% – 16.86%) | Ongoing | Click here |
 | Register with Envestio and you get a €5 sign up bonus (after €100 deposit), and 0.5% extra on top of investments for 270 days after initial registration. Envestio Review. | 19% | Ongoing | Click here |
 | Invest your money with Grupeer to achieve a 13-15% return with buyback guarantee. Grupeer Review. | 14% | Ongoing | Click here |
 | Register with Reinvest24 for a bonus €10 on signup. | 14% | Ongoing | Click here |
 | Register with Monethera and receive €5 sign up bonus, and a bonus 0.5% on your investments for 180 days. | >20% | Ongoing | Click here |
 | Register with Wisefund and receive a bonus of 0.5% of your investment. Wisefund Review. | >20% | Ongoing | Click here |
 | Register on Crowdestor and receive a 1% bonus on your investments for 90 days. Crowdestor Review. | >20% | Ongoing | Click here |
 | If you register and invest $1,000 across the 1-Month Rolling or 5-Year Income markets, you will earn a $50 Welcome Bonus | Up to 8% | Until 31 December 2019 | Click here |
| Other | ||||
 | Transfer money with TransferWise and your first transfer of up ~500 EUR is free | N/A | Ongoing | Click here |