Importing sequences from others is a pretty simple process if you’re ready for it.

Free Sequences: Google Drive https://drive.google.com/drive/folders/0B2ozCEidtWh3MUVzX0ZMc1pzY00
Sequence Armory https://sequencearmory.com/

Sequence Vendors:
Lilia: https://nutcracker123.com/store/
PPD: https://www.pixelprodisplays.com
xTreme: https://www.xtremesequences.com