My advice; If you are looking for developing a blockchain product processing tokens, coins. Ethereum is the best platform to start.
Developed products creating smart contract for transactions. It helps create real world desired applications like wallet and e-commerce stores etc. Created wallet for charity apps and a wallet where peers/users (group of people) raise money with some target set by leader to buy or donate to anything/anyone out there. Worked with charity app development, wrote whitSee full review