Publications
This is not meant to be complete but gives some options to start with for financial technology papers. I would be content with a publication at any one of these.

• Conferences: ACM CCS: Blockchain Track, Financial Cryptography (FC), Advances in Financial Technologies (AFT)
• Workshops: WTSC/DeFi (@FC), DeFiSec (@CCS), CBT (@ESORICS)
• Events: Science of Blockchain Conference (SBC), Devcon, Cryptoeconomics and Security Conference (CESC)
• RIP: Bitcoin Workshop (@FC), IEEE S&B (@EuroSP), BCC (@AsiaCCS)

• General conferences: IEEE Symposium on Security & Privacy (Oakland), ACM CCS, USENIX Security, CRYPTO, EUROCRYPT, ASIACRYPT (followed by: NDSS, IEEE EuroS&P, PETS, SOUPS, ACM AsiaCCS, CT-RSA, PKC, ACSAC, ESORICS)
• General magazines: Communications of the ACM, IEEE Security & Privacy Magazine
• General events: Real World Crypto, USENIX Enigma, Grace Hopper Celebration

Finance

• Trading and Exchanges: The most important introductory textbook for financial markets.
• Khan Academy: Accessible videos on the basics of all aspects of finance and economics.
• IMG F&D Back to Basics: A set of articles from IMF on the basics of finance and economics.
• Centre for Central Banking Handbook: A set of chapters from the Bank of England with thorough discussions of central banking topics.

Bitcoin & Blockchain

• Bitcoin and Cryptocurrency Technologies: Online course and textbook from Princeton covering Bitcoin.
• Bitcoin and Blockchain Technologies: My own online course on Bitcoin, Ethereum, and financial technologies.
• Solidity by Example: Best introduction to developing decentralized apps on Ethereum.
• Bitcoin bibliography: Not updated but has early literature in the field.