There used to be - there was a tool that used pushshift to find things even beyond the 1000 limit, but it stopped working after pushshift was shut down last month.

Even so, thanks to the hard work of that team, there's still a way to get everything (and I do mean everything - even stuff way beyond the 1000 index limit and stuff not found by the search engines). See https://kbin.social/m/RedditMigration/t/65260/PSA-Here-s-exactly-what-to-do-if-you-hit-the