You can consider a platform that has the following features:
- Offers only direct plan funds, these help you gain upto 40% more by avoiding commissions
- Provides strong advisory capability
- Has a flat pricing so that it is cost effective and has no hidden costs
- Supports SIPs. Check this answer: What is the best site or app for investing in direct mutual funds through SIP?
Do consider Jamā as it meets the above criteria (Disclosure: i am with Jamā).