Try remotes4u: I can recommend this company which sells any remote you could possibly need. I got one for a 20 year old Toshiba which works perfectly.
https://www.remotes4u.co.uk/?gad_source=1&gad_campaignid=22580142860&gclid=CjwKCAiA3-3KBhBiEiwA2x7FdITvVEMrtkMH6FsXI7x30cr-AazStBQqMRb2kqUolrX1hXBSB1vPihoCaKoQAvD_BwE