Seeking Advice on Finding Beta Testers

I'm currently in the process of developing a new screen recorder, and we're at a stage where feedback from beta testers would be invaluable. - What platforms or strategies have you found effective for recruiting beta testers? - Are there specific forums or websites that you would recommend? - Any tips on engaging with potential testers and encouraging participation? I appreciate any insights or experiences you're willing to share. Thank you in advance for your help!