DROP TABLE billing_data_archive_20190210;
DROP TABLE billing_data_archive_20190314;
DROP TABLE billing_data_archive_20190425;
DROP TABLE billing_data_archive_20190529;

DROP TABLE billing_data_archive_BackUp_January;
DROP TABLE billing_data_archive_feb_9;
DROP TABLE billing_data_archive_first_import;

DROP TABLE billing_data_archive_old;
DROP TABLE billing_data_archive_old_9_12_19;
DROP TABLE billing_data_archive_sjh_2_11;

DROP TABLE billing_data_old;
DROP TABLE billing_data_old_6_12;

DROP TABLE `Copy Of SBILL_Simplied Billing Data`
DROP TABLE current_devices_orig;
DROP TABLE machines_copy1;
DROP TABLE machines_orig;
DROP TABLE machines_temp_sjh;
DROP TABLE Machine_Archive_old_9_12_2019;

What about the spcsta5_budget db? Is this in use? The Y tables only go back to 2015. Machine_Archive years are only 14 and 15. If we could drop all of these tables, that would free up a lot of space. The Y2014 and Y2015 meter tables each have over 1,000,000 records.

db dropped
spcsta5_budget;
spcsta5_sqldemo;
spcsta5_stardoc_backup_20200501;
spcsta5_stardoc_backup_20200527;
spcsta5_upgrade;

How about
Deleting some records from machine_status (7,900,819 rows) 
Dropping meter_jamin