There are not many options left for mainland IDs. Open them while you can and cherish the window. You may not use them now, but it is good to have them. Below are the ones I have successfully opened so far, recommended and relatively safe and stable.
IBKR (Interactive Brokers)
A top-tier global broker with low commissions and excellent FX rates, suitable for experienced investors.
💰 Deposit 10000USD within 30 days and keep an equivalent balance for 1 year to receive higher rewards (IBKR stock).

uSmart
A licensed broker in Singapore with a friendly UI and strong Chinese support, ideal for beginners. Invite code is in the guide.
💰 Recommended first deposit: 2000USD (uSmart Singapore) or 20000HKD (uSmart Hong Kong) and above, for higher rewards (cash voucher bundle, miss it and it is gone).
Investing involves risk. Enter the market with caution. It is recommended to keep some funds to avoid empty accounts being cleared. Recommendations above are based on personal experience and are for reference only.

