Here's a list of services I personally use and for which you can register with my referral code:
Mintos - they will give you 1% of what you invest in bonus if you invest with this code: ZMMI9T
EstateGuru - code EGU58354 - You can use this code when registering or use this direct link: https://estateguru.co/login/auth?userPromotionCode=EGU58354
CrowdEstate - alongside with EstateGuru is one of the best platforms to invest in real estate
Crowdestor - new player in the crowd-lending space but with some interesting projects (e.g.: Tesla Taxis) and returns (e.g.: 36% p.a.)
TransferWise - by registering with this link transferwise.com/u/vitorh27 you'll get a free international transfer up to 500 GBP.
I was slightly disappointed with TransferWise so at this moment I recommend Revolut - better rates when converting currencies, better service, app and UI: https://revolut.com/r/vitor4e3