Well, after a long time I managed to find almost all songs from my tapes. There are only 5 untitled ones left, and waiting to be named!

These two are euro-dance and remind me of Solid Base:

https://drive.google.com/open?id=1i4yogCy-zXpElM0ZTQUhBf5adpih6CFr
https://drive.google.com/open?id=1-socYrfUfHoq1X5VGuUptuIJZ0Hz59As

This one, I have no idea... Perhaps Italo-dance. The singer reminds of Paparizou but is not.

https://drive.google.com/open?id=10SgjCWePCCsWcbQDSsmjMnOB2-1PA9Q4

And these insane trancy ones must be Italo-dance, too!

https://drive.google.com/open?id=1zNtso1xeQyF1a65fHsJjb-tQrV2A6qLX
https://drive.google.com/open?id=1sxDmvlW34dHqklnOiEtG4MsQuRt7oJWr

All of them are from 2000-2004.