I know its possible open dual-funded channel, but i have not enough experience for suggest or give useful information to other. What i know is used by LN+ https://lightningnetwork.plus/posts/232
If you want rebalance the liquidity of you channel, you can use tool like https://github.com/cryptosharks131/lndg or https://github.com/C-Otto/rebalance-lnd
Note that 100% inbound is not a bad thing: it means you can route big payment towards that channel if needed.
Expecially for small nodes, expect some periods of inactivy in your
