Need other uses for Hextech Essence

My account here is is mostly just to play with low level friends so we dont get matched against gold+ when I play with my RL mid-high bronze level friends. I just have 22 champs, which I know is on the low side for most players and accounts, but have accumulated over 5k orange essence from boxes as the majority of the skins are for champs I dont own. Rerolling 3 skin shards into another permanent skin also is not an attractive option since that has a very high chance to reroll into a skin for a champ I dont own.

Sure I get that RITO is a business for make money yadda yadda whatever excuse people will open with. I'm not asking for a huge gain here, but something like:

1. 200 Essence - unlock a random skin for your entire team for the single game. Kinda like the skin boost in ARAM, but this wouldnt even have to come with the bonus 200 IP but can be used on SR or TT. No loss for RITO and will boost your team morale by getting a little treat

2. 750 Essence - unlock a single chroma. Chromas cant be obtained by boxes, and would be even more outrageous if they did where you'd need that champ, then that champ's skin with the chroma in order to use it. Some champs have chromas for their base model, but most dont. IDK how much chroma sales actually make up RITO's revenue, but I'd assume it's not significant. if they're willing to give free skins, why not Chromas at a much higher cost since we can pick it? Right now unlocking a skin = RP cost - 300 (for the shard) so a 975 RP skin would cost 675 RP. @750 to unlock a chroma costing more than double the 290RP for a Chroma cost seems quite fair?

3. Convert one essence type into another at a steep exchange rate. Even like 3 to 1. Someone will always value one essence type over the other. Those with lots of champs will get more skins they can use, so orange worth more. Those with few champs have little value for skins they dont have champs for, and would rather unlock more champs with blue essence.