BetaList's whole point was an audience that wanted rough edges: 70,000 subscribers who read it specifically to find things that are not finished. The wizard now ends at a payment screen, the cheapest listing is $39, and the free route is gone, which makes it a paid ad to early adopters rather than the free front door it used to be.
Nothing below reproduces that audience exactly, so pick by what your product actually is. LeanVibe is the closest in spirit and the strictest about it: pre-revenue products only, fully usable without a card, published the second you submit. Indie Hackers takes an early product if you bring a story rather than an announcement. Startup Fast, Launch League and Maidensail are weekly competitions where a small following can still place, and all three want their badge up first. Bowora and ConfettiSaaS are plain directory listings for something that exists but is not launched. EarlyHunt will take you free, but its calendar runs months deep, so submit there for the link and forget about it.
Across the 10 platforms on this list, median approval time is 4 days, 6 of 10 give dofollow backlinks, 9 are free to submit. Median domain rating: 54.