This comparison table of online therapy services from my research/experience might help:

• Online-therapy.com: Best overall. Lowest Cost. Very High Reviews. Skilled Licensed Therapists.
• OurRitual.com: Best for Couples Therapy. Lowest Cost for Couples. Licensed Relationship Therapists. High Reviews.
• Calmerry: Low Cost. Great Reviews.
• Betterhelp: Medium/High Cost. Mediocre reviews. Controversy. Largest service.
• Talkspace: Medium/High Cost. Mixed reviews. Poor Value.

It's based on reviews, therapist discussions, interviews, and web research by a team of enthusiasts.