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.

• General security conferences: IEEE Symposium on Security & Privacy, ACM CCS, USENIX Security (followed by: NDSS, EuroS&P, AsiaCCS, ACSAC).
• General cryptography conferences: CRYPTO, EUROCRYPT, ASIACRYPT.
• Specialized conferences: Financial Cryptography.
• Specialized workshops: WTSC/DeFi (@FC), IEEE S&B (@EuroSP), CBT (@ESORICS), DeFiSec (@CCS), BCC (@AsiaCCS)
• New and interesting: ACM Advances in Financial Technologies (AFT), Cryptoeconomic Systems (CES)
• Magazines: Communications of the ACM, IEEE Security & Privacy Magazine
• General academic speaking events: Real World Crypto, USENIX Enigma, Grace Hopper Celebration
• Specialized academic speaking events: Stanford Blockchain Conference, Devcon, Cryptoeconomics and Security Conference

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.