If you're raising capital, start with warm introductions through your network—founders, investors, advisors, alumni communities, and existing supporters. Investors are far more likely to review a deck that comes through a trusted referral.
You can also use platforms such as AngelList, Gust, OpenVC, and relevant accelerator programs to identify investors aligned with your stage and industry. Research investors carefully and target those who actively invest in companies like yours.
If your goal is feedback rather than fundraising, share the deck with experienced founders, mentors, startup communities, or advisors before sending it to investors. A few rounds of honest feedback can dramatically improve your chances of getting meetings.
The biggest mistake founders make is sending the same deck to hundreds of people. A targeted approach almost always works better than a broad one.