I've identified Pitcbhook as a resource for researching VCs and thier portfolio companies, despite what seems to be expensive pricing. Also the thefunded.com, which appears to be a yelp-like service for entrepreneurs. Do people use placement agents like PE firms do? Bankers - i'm guessing no. Is it all networking and asking around?
Any insight would be much appreciated.
If you have many options, start with the firms that you are less excited about to debug the pitch. Only once you are confident you got the deck and narrative right go for the top ones.
Finally, remember that your top priorities are (in that order): closing quickly, quality of the investor and valuation & control.
I'd say accelerators/incubators take the place of agents. You don't really need the starting investment much of the time, but selling part of the company for 10% early on to handle networking is often a pretty good deal.
I'd suggest talking to other vc-funded fintech founders who've raised at your stage in the last couple of years, especially for products that sit in parallel spaces to yours. They'll know who the relevant fintech investors are because they'll have spoken to many of them.