Were to get clients?

we have a BPO but we need clients, any suggestions were to look for them? we tried linkedin and other websites that offers info for business owners etc but it seems to be oversaturated with dead-ends

Bro, try creating paid ad compaign for quick results and for long term growth. Trying creating content around BPO and your expertise. This will build credibility along with your brand image which is helpful in a long run.

Google and meta ads (and for a bpo, linkedin ads directed to person of interest) is the main way to obtain clients. If you wanna do that organically, your best shot it to create the business page on linked in and create articles related to your services, it might possible attract the right clients. Good luck