I can't emphasise enough how joyful and important it is to go to yoga classes in person when you can. Being in the company of others, sharing your space, hearing other people breathing, the room warming as you all move together, it uplifts the soul. It's yoga.

But! Accepting that travel, work, health and other commitments make this difficult, having online go-to videos is an excellent backup. It is also a really smart way to augment your practice, so that if you are focusing on achieving handstand or you want a different perspective on how to get into poses, you can find a teacher who speaks to you.

You need a mat, enough space to swing your arms and legs around beyond the mat, and access to water if you need it.

Yoga Flow 
45 Minutes
Advanced
Dynamic vinyasa flow with a fabulous instructor from Yoga Vine.

Down N Dirty Dog Dives
2 Minutes 11 Seconds
Advanced
Niko does a Downward Dog (Adho Mukha Svavasana) variation that is super tough on the triceps and will appeal to advanced yogis. 
Follow up with his Plank Variations.

Headstand For Beginners
7 Minutes 7 Seconds
This isn't all fun and games! There's a pan flute. Having warned you, this is an excellent way to explore headstand if you haven't done it before.
This got me into headstand for the first time. Truly. Kudos to you Ananda Yoga!

Sophie from Ananda also talks you through Crow Pose for Beginners. Also an excellent guide.

Super challenging Vinyasa Flow
60 Minutes
Love Leigha's creative sequencing and her calm, well paced movements and teaching voice. Try it.