is there a way around to use Torrent with Catalina?

Unless uTorrent is a 64-bit application, there is no workaround on Catalina which only supports 64-bit applications. Check with the uTorrent developer.

if utorrent is only in 32bit

µTorrent (uTorrent) | A Very Tiny BitTorrent Client

then it seems qbittorrent support big sur

qBittorrent Official Website

The fact that the developer(s) of uTorrent has decided not to update to 64 bit tells you how much they care about Mac users.