i can't say i'm familiar with doots but i'm going to automatically assume it is sakura miko, of hololive
https://twitter.com/opera_siawasena/status/1118584693547421696
https://twitter.com/opera_siawasena/status/1118585957798670337
https://twitter.com/opera_siawasena/status/1118586366491627520
she seems like the dooting type
there are many dumb dog girls out there (my favourite likely being the first one i linked in the post just now, souya ichika) but i'll also assume it is inugami korone, also of hololive